Addendum No. 2 Oakbrook

Fairfield-Suisun Unified School District 3 2490 Hilborn Road• Fairfield, California 94534  Telephone (707) 399-5148 FAX: (707) 399-5162 www.fsusd.org “Fairfield-Suisun Unified School District is a premier learning community that empowers each student to thrive in an ever-changing world.”

ADDENDUM NO. 2: Dated: October 7, 2020

PROJECT: Oakbrook Academy New Performing Arts Center BID #21F-111 DSA Application No: OAKBROOK 02-118453

To all bidders submitting proposals for the above captioned project. This Addendum is hereby included in the Contract Documents to the same extent as though it were originally included therein. The following items modify, add to, delete from, or explain the drawings and/or specifications. The contents of this Addendum shall take precedence over the original specifications and plans. Acknowledge receipt of this Addendum in the space provided in the Proposal Form. Failure to do so may subject Bidder to disqualification.

A. CLARIFICATIONS

Item A1. None.

B. CHANGES TO SPECIFICATIONS

Item B1. Refer to attached specification 27 41 00 AUDIVISUAL SYSTEMS with revisions noted.

C. CHANGES TO DRAWINGS

Item C1. Revise sheet A11.10 to read RSF for flooring in rooms K113 and K114.

Item C2. Revise Sheets S3.1 and S3.2 to show total weight of the RTU-1 and RTU-3 with the curbs to 560lbs as approved by DSA. See sheets ADD2_S3.1, ADD2_S3.2a and ADD2_S3.2b.

D. NEW DRAWINGS

Item D1. None.

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Oakbrook Academy New Performing Arts Center Bid# 21F-111 Addendum No. 2 October 7, 2020

E. RESPONSE TO BIDDER QUESTIONS

Question 1. 274100 AV2.11 Note 4 states "All 'future' Equipment provide conduit and junction boxes only", please confirm this project is infrastructure only and does not include AV Equipment listed in 274100 part 2. Answer 1. Incorrect. This project is a full AV system installation with active reverberation and all devices are to be provided and installed per 274100 Part 2. The AV2.11 drawing note only applies to any systems or devices clearly marked “future” on the project drawings or specifications.

Question 2. 274100 2.2E (28) Yamaha REV VXC8W speakers are called out, but not shown on AV2.11. Please provide a Reflected ceiling plan Answer 2. See attached design layout by Yamaha. Yamaha will provide the final speaker and microphone layout of their AFC4 system. Please contact Joe Rimstidt [email protected] (512) 940-6140 for any updates.

Question 3. 274100 2.2E (18) Yamaha IF2205 speakers are called out, but not shown on AV2.11. Please provide a Reflected ceiling plan Answer 3. See attached design layout by Yamaha. Yamaha will provide the final speaker and microphone layout of their AFC4 system. Please contact Joe Rimstidt [email protected] (512) 940-6140 for any updates.

Question 4. 274100 2.2B1 2.2B mentions Rear projection for Theater system. 2.2A specifies a Da- Lite HD Progressive 1.1, which is a front projection material. Please confirm if system is intended to be front or rear projection. Answer 4. Front projection, please see Addendum 2 specifications.

Question 5. Can you confirm that this work does not contain any intumescent or cementitious fireproofing applied to any structural steel? Answer 5. Per 2019 CBC Table 601 no additional protection is required for this type II-B construction.

Question 6. What is the finish code “RTF” on sheet A11.10 under rooms K113 and K114? Is this meant to be Resilient Sheet Flooring? Answer 6. Yes, revise to read “RSF”.

Question 7. Section 075419 / 2.6 calls out for basis of design for insulation Enrgy 3 - 20 psi with a minimum thickness of 6" (which equals approximate R-37) and 1/2" ISO HD board for coverboard/fire board - Tapered Insulation ENGRY 3 -20 psi Section 072216 Roof Insulation calls for R-32 (approximately 5") with 1/2" Gypsum

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Oakbrook Academy New Performing Arts Center Bid# 21F-111 Addendum No. 2 October 7, 2020

coverboard - Tapered Insulation XPS Insulation and all insulation to be 25 psi. Please clarify. Answer 7. Insulation must be a minimum of 6” and per specification 07 54 19.

Question 8. 1 Depth of asphalt? 2 All electrical terminated at site? 3 Depth of concrete? Answer 8. 1. Existing Asphalt to be removed depth is 4”+- per Geotech report. New Asphalt is per Details 1/ C5.2 and 1A/C5.2. 2. Question not clear. Please elaborate. 3. Existing concrete to be removed depth is unknow but assumed 4”-6” thick. New concrete paving is per details 2 /C5.2 and 2A/C5.2

Question 9. Document Electrical Plans: For Example EP400. We see the speaker symbols referencing the PA System speakers but we need type indicated for all speakers in the PA system. Answer 9. The speakers shall be compatible with the existing Bogen Multicom 2000 PA system on campus. Bogen S86T725PG8UBR or approved equal. https://www.bogen.com/products/pdfs/conepdfs/S86_S10_Assemb.pdf

F. ATTACHMENTS

Item F1. ADD2_S3.1 and S3.2 (3 pages) Item F2. ADD2_Spec 27 41 00 (19 pages) Item F3. ADD2_AV AFC4 Layout (7 pages)

End of Addendum No. 2

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METAL DECK PER METAL DECK DIAPHRAGM SCHEDULE PER TYP. DTL. 3/S1.7, REFER TO DTL. P 9/S1.7 FOR METAL DECK 1.1 C ATTACHMENT LAYOUT S1.7 A T 6' - 0 1/2" 7' - 7 1/4" 5' - 6 3/4" 5' - 2 1/2" 5' - 8 1/4"

L3X2 -1/2X5/16 L3X2 -1/2X5/16 L3X2 -1/2X5/16 L 200# 200# 4 L3X2-1/2X5/16 TRAN S1.7 L5X3X5/16 PAD P 13/S1 TYP. WT. = 200# 200# L3X2-1/2X5/16 400 L3X2-1/2X5/16 L5X3X5/16 12K 12K 12K 12K 12K L5X3X5/16 L5X3X5/16 UNIT PER MECH. MAX OP. WEIGHT = 560379# (RTU3) 12K (SEE NOTE 6 FOR ADD'L INFORMATION) AB 4

L3X2 -1/2X5/16 L3X2 -1/2X5/16 L3X2 -1/2X5/16 - PRMC Cath Lab_ACD0001_A19_adonecho.rvt Cath PRMC -

1.1 S1.7 CONNECT DECK TYP. TO EA. JOIST PER SCHED. ON DTL. 3/S1.7, TYP. FILE FILE LOCATION:

PALMDALEOAKBROOK REGIONAL ACADEMY MEDICAL CENTER Cath Lab Remodel NEW PERFORMING ARTS CENTER

4/2/2020 1:14:27 PM 1:14:27 4/2/2020 C:\Users\asandy\Documents\18047 REFERENCE NO. N/A DRAWING NO. DSA NO. 02-118453 3.1 REVISION TYPE: ADD-S2.1A-505 40 SOUTH FIRST STREET, SUITE A PROJECT NO. 6688 ADDENDUM SAN JOSE, CA 95113 19six JOB NO. 18047.0120066.01 TEL (408) 715-4470 DATE: BY: Author BA

DATE PLOTTED: 10/06/20 JF L6X3 -1/2X1/2 L6X3 -1/2X1/2 L5X5X5/16 6'-0"

" L5X5X5/16 8' - 0" 4' - 10" 7' - 7 1/2" FRM'G TYP. AT L5X5X5/16

TYP. U.N.O. PANEL BRK. UNIT PER MECH. MAX DBL L6X6X1/2 DBL L6X6X1/2 OPERATIONAL WEIGHT = DBL 0# 2,3922,236# (RTU5) L6X6X1/2 600# 400# 400# AB

L5X3X5/16 L5X3X5/16

7 400# 600# 400# L5X3X5/16 1.8 L5X3X5/16 4 L5X3X5/16 L5X3X5/16 S1.8 - PRMC Cath Lab_ACD0001_A19_adonecho.rvt Cath PRMC - FILE FILE LOCATION:

PALMDALEOAKBROOK REGIONAL ACADEMY MEDICAL CENTER Cath Lab Remodel NEW PERFORMING ARTS CENTER

4/2/2020 1:14:27 PM 1:14:27 4/2/2020 C:\Users\asandy\Documents\18047 REFERENCE NO. N/A DRAWING NO. DSA NO. 02-118453 3.2a REVISION TYPE: ADD-S2.1A-505 40 SOUTH FIRST STREET, SUITE A PROJECT NO. 6688 ADDENDUM SAN JOSE, CA 95113 19six JOB NO. 18047.0120066.01 TEL (408) 715-4470 DATE: BY: Author BA

DATE PLOTTED: 10/06/20 JF 600# 800# 800#

5/16 DBP3 DBP3 L5X3X5/16 DBP3 L5X3X5/16 L5X3X5/16 DBP3 DBP3 L5X3X5/16 L5X3X5/16 600# 800# L5X3X5/16 800# 200# 200# L5X3X5/16 L5X3X5/16 L5X3X5/16 L5X3X5/16 UNIT PER MECH. MAX 8 OPERATIONAL WEIGHT 200# 200# S1.8 8 = 3,175# (RTU2) S1.8 L5X3X5/16 L5X3X5/16 AB L5X3X5/16 UNIT PER MECH. MAX OPERATIONAL WEIGHT = 560379# (RTU1)

6X1/2 DBL L6X6X1/2 DBL L6X6X1/2 DBL L6X6X1/2 - PRMC Cath Lab_ACD0001_A19_adonecho.rvt Cath PRMC - FILE FILE LOCATION:

PALMDALEOAKBROOK REGIONAL ACADEMY MEDICAL CENTER Cath Lab Remodel NEW PERFORMING ARTS CENTER

4/2/2020 1:14:27 PM 1:14:27 4/2/2020 C:\Users\asandy\Documents\18047 REFERENCE NO. N/A DRAWING NO. DSA NO. 02-118453 3.2b REVISION TYPE: ADD-S2.1A-505 40 SOUTH FIRST STREET, SUITE A PROJECT NO. 6688 ADDENDUM SAN JOSE, CA 95113 19six JOB NO. 18047.0120066.01 TEL (408) 715-4470 DATE: BY: Author BA

DATE PLOTTED: 10/06/20 JF

SECTION 27 41 00

AUDIOVISUAL SYSTEMS

PART 1 - GENERAL

1.1 INCLUSION OF OTHER CONTRACT DOCUMENTS

A. The General Conditions, Supplementary Conditions and Division 1 are fully applicable to this Section, as if repeated herein.

1.2 RELATED WORK SPECIFIED ELSEWHERE

A. Section 05 4000, Cold-Formed Metal Framing.

B. Section 06 1000, Rough Carpentry.

C. Section 09 5100, Acoustical Ceilings. (for ceiling suspended projection screens)

D. Division 26, Electrical.

E. Division 27, Communications.

1.3 QUALITY ASSURANCE

A. Mention of certain materials in these Specifications shall not be construed as releasing the Contractor from furnishing such additional material(s) or equipment and labor that may be required to provide a complete and operable system conforming to standard design practice, installation and performance.

B. Products and equipment in these Specifications are listed by manufacturer and model number with assumed performance criteria. Certain equipment and systems are District standards with no substitutions allowed and will be identified as such. Where allowed, some equipment substitutions may be submitted subject to review. All substituted equipment is subject to approval in writing by the Owner and Engineer. Substitution provisions under this specification are: the contractor is to provide engineering certification substantiating equivalence, improved or equal reliability, long term service life, service history and internal component system design.

C. Materials specified herein shall be new, free of defects and shall be the manufacturer's latest design. They shall be permanently labeled with the manufacturer's name, model number and serial number. Active circuitry shall be solid state and shall be rated for continuous use. Similar devices shall be of the same manufacturer. Use only new materials and products, unless existing materials or products are specifically shown otherwise on the Drawings to be salvaged and re-used.

D. Use materials and products of one manufacturer whenever possible.

E. Finish color of all loudspeakers and associated mounting hardware shall be coordinated with the Architect and Owner.

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F. All materials, components, assemblies, workmanship and installation are to be observed by the Owner's Inspector of Record. Work not so inspected is subject to uncovering and replacement.

1.4 SCOPE OF WORK

A. Description: Provide all materials, engineering, and labor required to provide a complete and fully operational Audiovisual System (aka “AV System”) as described on the Drawings and in these Specifications. This work shall include the furnishing, installation, assembly, set up, and testing of the AV System indicated on the Drawings and specified herein.

B. Audiovisual Systems will consist of sound reinforcement, video projection, intercommunications, active reverberation system, and control for the Theater and support spaces. B 1.5 BIDDER QUALIFICATIONS

A. This work shall be performed by an Audiovisual Systems Contractor (aka “Systems Integrator” or “Contractor”) who has at least five (5) years direct experience with the devices, equipment and systems of the type specified herein, and who has a fully staffed and equipped maintenance and repair facility within one hundred (100) miles of the project location. Companies that specialize in telecommunications, networking, security, or other low voltage systems without direct experience in similar audiovisual systems described herein are not qualified bidders.

B. Supervisors shall have at least five (5) years direct experience in similar work. Installation and maintenance personnel shall have at least three (3) years direct experience in similar work.

C. The Contractor shall hold the necessary licenses issued by the State of California for an electrical contractor, State of California Electrical Contractor's License, State of California Journeyman Electrical Certificate or Specialty Electrician for Low Voltage Systems, where applicable.

1.6 SUBMITTALS

A. Refer to Section 01 3300.

B. Manufacturer's Data: Submit list and complete descriptive data of all products proposed for use. Include manufacturer's specifications, published warranty or guarantee, installation instructions, and maintenance instructions.

C. CAL-GREEN Submittals:

1. Product Data – VOC Limits: For adhesives, sealants, fillers and primers, documentation including printed statement of VOC contents, comply with limits specified in Section 01 6116.

D. Prior to ordering materials or commencing any construction activities, the AV Systems Contractor shall provide a complete bill of materials, including all quantities of software

FSOE-04 AUDIOVISUAL SYSTEMS Oakbrook Academy of Arts New Performing Arts Center 27 41 00 - 2

licenses, commissioning, components, devices, equipment, wiring, and labor required to complete this work. Each item of equipment to be listed with the following: 1. Item number 2. Manufacturer 3. Model number 4. Description or nomenclature 5. Quantity to be furnished 6. Compilation of manufacturer’s catalogs or specification sheets on major system components

E. Shop Drawings: Furnish shop drawings, including one line and wiring diagrams as well as speaker rigging/mount details stamped by a California Professional Engineer (Structural). General Contractor shall also submit name of firms he proposes to do work under this Section, addresses, phone numbers, and name of firm's contact, for approval. Such firms shall have offices and service departments within a 100 mile radius of project and shall have been in business of this type for at least five years. Two (2) submittal reviews and up to five (5) RFI responses will be made by the Architect's representative. Subsequent reviews and responses will be charged to the Contractor. A rejection of a submittal or review of a partially presented submittal constitutes one submittal review.

F. Record Drawings: Refer to General Conditions. Final Inspection will not be made until drawings are received and approved. Record Drawings shall include "As Built" one line and wiring diagrams, with terminations identified and wire color coding schedule.

G. Submit a System Technical Manual containing the following at a minimum: 1. Equipment supplier of systems to demonstrate operation of systems to satisfaction of Owner and furnish Owner three (3) wiring schematics for all items of equipment, installation instructions, and details of all routine maintenance and servicing which must be given to systems by Owner. Wiring schematics must list all static/fixed IP addresses for all codecs or system processors where connected to the campus LAN. Manuals shall be provided in 3-ring binders, with title page, list of contents, and conspicuous label on cover and shall be delivered to District. Submit copy to Architect for approval before delivering to Owner. 2. Complete as-built drawings showing internal wiring of all equipment assemblies, wiring between equipment assemblies, running sheets showing cable color coding and terminal connections on all equipment assemblies, and field changes and/or additions.

H. Guarantee of Contractor/Subcontractor per Article 1.5.

1.7 GUARANTEE

A. Refer to General Conditions and Section 01 3300.

B. Submit fully executed Guarantee with submittal package required by Article 1.4.

C. One firm to assume full responsibility for performance on all work of this section. Guarantee all equipment against defects in material and workmanship for two (2) years, and provide on the premises service during normal working hours for two years,

FSOE-04 AUDIOVISUAL SYSTEMS Oakbrook Academy of Arts New Performing Arts Center 27 41 00 - 3

at no cost to Owner if trouble is not caused by misuse, abuse, or accident, or at current labor rates if so caused. Provide to Owner manufacturer's written one-year guarantee for equipment and parts.

D. Service shall normally be available within 24 hours from service department of authorized distributor of manufacturer by factory trained servicemen. All requests for service and repair under this warranty shall be honored, except when damage has resulted from vandalism, misuse or natural disaster.

E. On the premises service at other than normal working hours to also be available, but labor charges for such calls to be paid by Owner at current labor rates.

F. Documentation: Documentation of changes, spectrums, levels, repair or replacement of equipment shall be noted and indicated in the Owners System Technical Manual

1.8 REFERENCES AND STANDARDS

A. California Building Code (CBC), edition as noted on the drawings, as adopted by the California Division of the State Architect (DSA).

B. For all equipment operating at 26 volts or more, or utilizing over 50 watts, Contractor to submit proof within time allowed for submittals that all items of equipment will conform to requirements of UL Label or listing of equipment by UL to be accepted as evidence of conformance. Projection screen shall be listed with Underwriters Laboratories (UL).

C. For all items of equipment operating at 25 volts or less, and utilizing less than 50 watts, Contractor may submit, in lieu of such label or listing, written certificate from any nationally recognized testing agency, adequately equipped and competent to perform such services, that each item has been tested and conforms to UL standards, including method of test of UL.

D. All materials, equipment and installation procedures shall comply with the National Electrical Safety Code.

1.9 DELIVERY, STORAGE AND HANDLING

A. Deliver undamaged products to job in manufacturer's sealed containers and/or original bundles with tags and labels intact.

B. Store materials in protected, dry conditions off of the ground and in areas so as to not interfere with the progress of the work.

C. Transport, store and handle in strict accord with the manufacturer's written recommendations.

D. Make delivery to job when notified by General Contractor verifying that the job is ready to receive the work of this Section and that arrangements have been made to properly store, handle and protect such materials and work. Coordinate with Owner and General Contractor regarding times of installation for each part of the building.

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1.10 PROJECT CONDITIONS

A. Make and be responsible for all field dimensions necessary for proper fitting and completion of work. Report discrepancies to Architect before proceeding.

B. Products shall be available at project when required for installation so as not to delay job progress. Installer for these products shall cooperate with installers performing work under other Sections involved to effect proper installation.

C. Coordinate with Owner and General Contractor regarding times of installation for each part of the building. Coordinate with Electrical Contractor and conduct a site inspection to ensure conduit, junction boxes, floor boxes, LAN data cables, etc. required prior to the installation of audiovisual system components have been installed.

PART 2 - PRODUCTS

2.1 GENERAL

A. Theater: Provide a complete audiovisual system, intercom system, and active reverberation enhancement system for the Theater/Stage. AV components for support spaces will be provided as well.

B. Quality of Work: Material and equipment specified herein have been selected as the basis of acceptable quality and performance and have been coordinated to function as components of the included systems. Where a particular material, device, piece of equipment or system is specified directly, the current manufacturer's specification for the same shall be considered to be a part of these specifications, as if completely contained herein in every detail.

1. All materials specified herein shall be new and shall be the manufacturer's latest design, permanently labeled with the manufacturer's name, model number and serial number. All active circuitry shall be solid state and shall be rated for continuous use. Similar devices shall be of the same manufacturer, unless specifically noted otherwise in these specifications. 2. All auxiliary and incidental equipment necessary for the operation and protection of the systems specified in this section shall be furnished and installed as if specified in full herein.

2.2 EQUIPMENT – THEATER AND SUPPORT SPACES

A. Theater Projection Screen: Da-Lite (Milestone AV Technologies, LLC) Tensioned Professional Electrol wall mounted or suspended electric tensioned projection screen or approved equal.

1. Screen surface: HD Progressive 1.1, 1.1 gain and 85° half angle, standard 12” black drop at top. 2. Viewing Area Size: 16:10 aspect ratio (HDTV), 150 inches high x 240 inches wide. 3. Screen shall be electrically operated 120 volt AC (60 Hz) not more than 2.4 amp. Shall have specially designed motor mounted inside the roller, to be three wire

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quick reversal type, oiled for life, with automatic thermal overload cutout and integral interlocking gears. To have pre-set but adjustable limit switches to automatically stop screen fabric in the “up” and “down” position. Electric brake will prevent coasting. Rigid metal roller mounted on two adjustable brackets to allow centering or offsetting of the screen within the case. Screen surface to be flame retardant and mildew resistant with black masking borders standard. Top, front, and back of case to be made of extruded aluminum powder coated white. End caps to be made of heavy gauge steel, powder coated white. Bottom of case to be self-trimming, with a built-in flange around the bottom of the case. To be complete with integrated low voltage control unit and 3 position control switch with cover plate. Screen to be listed by Underwriters’ Laboratories and CSA. 4. Projection screen shall be flexible, have a gain of 1.0 for front projection: Da-lite B Da-Mat 5. Accessories/Options: Shall include the Single Motor Low Voltage Control System.

B. Theater Projector: Epson Pro L1495UNL with Epson ELPLU04 V12H004U04 short throw lens (field verify all throw distances by AV Contractor prior to ordering) or an approved equal.

1. Provide a large venue LCD projector and mounting hardware for front video projection serving the Theater. Projector will project from a permanent location in the platform/stage ceiling and aim toward the projection screen in a front projection configuration. 2. Projector shall be 3LCD (3-chip LCD) native WUXGA resolution (1920x1200) and 4K enhancement feature with a 16:10 native aspect ratio, with an interchangeable lens. Projector shall use a Laser Light Source (phosphor laser) with a rated life of at least 20,000 hours. Verify final projector lens selection based on actual throw distance. 3. White brightness shall be at least 8500 lumens per ISO 21118 and color brightness shall be at least 8500 lumens per IDMS 15.4. 4. Projector shall include a wired network port and multiple inputs including (at a minimum): one HDMI, HDBase-T, VGA 15 pin, RS-232c, LAN RJ45, and audio. 5. Projector shall include a powered zoom lens with lens shift and keystone correction. 6. Acceptable Theater projector, the following or an approved equal: Epson Pro L1495U with ELPLU04 short throw lens. 7. Provide ceiling projector mount and system as required to properly mount and align the projector with the screen to minimize (or eliminate) the use of keystone correction or lens shift. Acceptable products, the following or an approved equal: Chief (Milestone AV Technologies) CMA-115 and RPAU with 1-1/2” NPT threated extension column (length per required mounting height). Confirm final mounting height with Architect.

C. Video Switching, Processing, and Control: Extron IN1808 IPCP SA, Extron DTP T UWP 4K 332 D, and Extron TLP Pro 725M.

1. Provide one (1) AV switcher/control processor capable of 4K resolution scaling and output. AV switcher shall include a minimum of 6 HDMI (HDCP compliant)

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inputs, 1 DisplayPort input, 2 DTP inputs, 1 HDMI output (HDCP compliant), and one DTP output (configurable also as HDBase-T). Switcher shall include multiple audio inputs and outputs for switching. Switcher shall include Extron IP Link Pro control processor with three dedicated AV LAN ports, one standard Ethernet port, and multiple serial/IR control ports. Acceptable products: Extron IN1808 IPCP SA 2. Provide one (1) dual input DTP transmitter rated for HDMI, VGA, control, and analog audio transmission up to 330 feet. Transmitter shall be installed at the wall location where indicated and reside in a 2-gang box and decora wall plate. Dual input transmitter includes one HDMI and one VGA input with auto switching and support of video resolutions up to 4K. Acceptable products: Extron DTP T UWP 4K 332 D (Qty. 1). Consult with Architect on color (black or white) before selecting depending on location. 3. Provide one (1) HDMI wall plate and one (1) DisplayPort wall plate and associated cables for local connection to the Extron IN1808 IPCP SA switcher. Total cable length must be less than 50 feet for HDMI and less than 10 feet for DisplayPort. Acceptable products: Extron WPD 110 A (HDMI) and Extron WPD 120 A (DisplayPort). 4. Provide and install one (1) 7” wall-mounted touch panel and one (1) 7” table-top touch panel control system interface to integrate with the Extron IN1808 IPCP switcher/controller and source devices installed at the Theater. LCD touch panel shall feature 1024x600 resolution and 24-bit color depth, built in speaker, light sensor to automatically adjust screen brightness, and power over Ethernet to eliminate a local power supply. Acceptable products: Extron TLP Pro 725M and Extron TLP Pro 725T each with XTP PI 100 Ethernet power injectors.

D. Media Players

1. Provide one (1) commercial Blu-ray player as a source device for video presentations, housed at the Control Booth equipment rack. “Universal” disc player shall be capable of playing Blu-ray, DVD, and CDs as well as include network and USB ports for other formats and devices including streaming services. Player must include HDMI audio/video output and separate audio outputs including 2 balanced line outputs and a coaxial digital audio output. Device shall be rack mounted and fit within one Rack Unit (RU) space. Acceptable products, the following or an approved equal: Denon DN-500BD.

E. Active Reverberation System (includes all associated speakers, amplifiers, microphones, processing, and control): Yamaha AFC4

1. Provide a complete and functional active reverberation system for the Theater and Stage including reverberation enhancement, early reflections, and an electronic band shell. System design and layout is based on Yamaha AFC4 system with design assistance from Yamaha. All final layouts and installation locations must be approved by Yamaha and the project Acoustical Engineer prior to installation. Speaker color to be approved by the Architect. No substitutions allowed. 2. Reverberation Enhancement (REV) speakers: Provide and install twenty-eight (28) ceiling mounted (in T-bar grid) speakers at the locations indicated on the Drawings. Speakers shall include a 1” diameter high frequency soft dome

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tweeter and 8” diameter low frequency driver with a nominal 100 degree conical dispersion pattern and integrated back can. Acceptable products: Yamaha VXC8W. 3. Early Reflection (ER) speakers: Provide and install a minimum of eight (8) surface mounted full range speakers at the locations indicated on the Drawings. Speakers shall include a 1.7” diameter high frequency compression driver and 8” diameter low frequency driver with a nominal 90 degree by 60 degree dispersion pattern: Acceptable products: Yamaha IF2108. Include U-brackets (UB2108) and/or alternative mounting hardware as required and approved by the Architect and Acoustical Engineer. 4. Electronic Band Shell (EBS) speakers: Provide and install eighteen (18) full range speakers at the locations indicated on the Drawings. Speakers shall include a 1” diameter high frequency compression driver and dual 5” diameter low frequency drivers with a nominal 90 degree by 60 degree dispersion pattern: Acceptable products: Yamaha IF2205. Include U-brackets (UB2205) and/or alternative mounting hardware as required and approved by the Architect and Acoustical Engineer. EBS speakers will be “dead hung” to the appropriate position and attached to the structure above. 5. Power amplifiers: One amplifier channel is required per speaker. Provide seven (7) 8-channel amplifiers rated at 250 watts per channel under an 8 ohm load. All amplifiers to have Dante networking build in. Acceptable products: Yamaha XMV8280-D (7) 6. Microphones: A series of four (4) cardioid microphones are required to provide system inputs to the ER and EBS systems while four (4) omnidirectional microphones are used for the REV system. Provide and install four (4) cardioid and four (4) omnidirectional microphones at the locations indicated by the Drawings and as approved by Yamaha and the project Acoustical Engineer. Acceptable products, cardioid microphones: Audix SCX1-c, DPA 2011C, Schoeps MK4+CMC6, or an approved equal. Acceptable products, omnidirectional microphones: Audix SCX1-o, Audio-Technica ES945, Schoeps MK2S+CMC6, Schoeps BLM03C+CMC6, or an approved equal. 7. Processing, matrix switching/routing, I/O, control, pre-amplifiers, and accessories: Yamaha AFC system is built upon the AFC4 controller/mainframe with various cards for processing and inputs/outputs. Provide and install the following Yamaha products: One (1) AFC4-S mainframe with processing engines, one (1) RI8-D Dante digital interface microphone pre-amplifier, one (1) minimum 18 port intelligent network switch with POE, and all required breakout, connection, and cascade cables as needed for a complete and functional system. Control will be integrated into the Extron touch panel system. Provide one (1) rack-mounted uninterruptable power supply (UPS) to protect all processing and electronics within the AFC equipment rack from power surges or other events, APC or equal. 8. Yamaha will provide programming and tuning of the AFC system once installed.

F. Communications System: Clear-Com HelixNet Partyline

1. Provide and install a complete intercom system used by the Theater and connected to associated support spaces. Intercom main station will feature fiber and Ethernet connectivity to connect remote speaker stations and standard intercom plates.

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2. Provide and install one (1) digital partyline main station in the Theater (at the Control Booth). Main station shall be 1RU with 4 channels of full duplex audio and program audio feed to support up to 20 beltpacks on a single station. Station shall feature separate headset and mic buttons, a speaker with a rotary volume knob, multi-color LED levels, a Stage Announce button, a Remote Mic Kill button, and an All Talk button. Station shall connect to wall plates via Ethernet. Acceptable products, the following or an approved equal: (1) Clear- Com HMS-4X main station. 3. Provide and install one (1) wall mount remote intercom speaker station per the Drawings. 4-channel, two display, digital networked partyline station shall connect to the main station through a single shielded twisted-pair cable. Acceptable products, the following or an approved equal: Clear-Com HKB-2X Speaker Station. 4. Provide seven (7) full-duplex 2-channel digital partyline beltpacks with power and audio over a single XLR cable or PoE cable. Beltpack shall feature a 10- character yellow OLED label display and be constructed of a poly-carbonate casing. Acceptable products, the following or an approved equal: Clear-Com HXII-BP Beltpack. 5. Intercom Accessories, Wiring, and Plates: Provide and install seven (7) Ethernet wall plates dedicated for intercom per the Drawings. Provide six (6) single cup headsets with integrated microphones (Clear-Com CC40). Provide two (2) dual cup headsets with integrated microphones (Clear-Com CC-400). Provide and install all required communications cable for point to point connections, all fiber and Ethernet/LAN cables between units, and an Ethernet switch with PoE to B connect remote speaker stations and input plates where required.

G. Assisted Listening Systems (for all spaces): Listen Technologies or an approved equal

1. Assisted listening devices for the Theater are required by ADA and California Building Code (CBC) based on seating capacity. Confirm quantity as required based on current ADA and CBC standards. Current occupancy load for the combined seating area and bleacher sections is 559. 2. Provide one (1) radio frequency assisted listening transmitter and a minimum of twenty-three (23) assisted listening receivers for the Theater. System shall also include neck loops for a minimum of 25% of all receivers provided, rack mount kit, charging station, remote antenna for wall mount, ALS signage, and antenna cable. 3. Furnish and install an RF wireless assistive listening system for use by the hearing-impaired. The assistive listening system (ALS) shall be capable of broadcasting on 57 channels and be frequency agile. The RF receiver shall be capable of receiving on 57 wide and narrow band channels. The device shall tune to a single channel and user shall not be able to change the channel. The receiver shall have a signal-to-noise ratio of 80 dB or greater and shall have an audio frequency response of 50 Hz - 15 kHz (±3 dB). The device shall employ a unique DSP SQTM noise reduction technology. The unit shall have a programmable squelch circuit. The unit shall incorporate a multi-functional display that indicates battery status, inventory number and channel. The device shall have the option of being lanyard or belt clip worn and the lanyard shall have the option of an integrated DSP driven neck loop that automatically senses and sends optimized audio signals directly to hearing aids and cochlear implants

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equipped with telecoils. The neck loop shall have a field strength of 400 mA/m (+/- 3dB) and frequency response of 100Hz to 5kHz (+/- 3 dB ref 1kHz). The device shall have a USB connector used for inventory control, set up, charging and firmware upgrades. The device shall incorporate automatic battery charging circuitry and use a non-proprietary lithium ion battery. The device shall have additional charging contacts to allow multiply charging options. The ALS system shall have 80dB SNR or greater, end-to-end. 4. Acceptable products, the following or an approved equal (provide quantities as specified for a complete system): a. Listen Technologies LT-800-072-01 Stationary RF Transmitter (Qty. 1) b. Listen Technologies LA-122 Universal Antenna Kit (Qty. 1) c. Listen Technologies LA-326 Universal Rack Mounting Kit (Qty. 1 ea.) d. Listen Technologies LR-4200-072 Intelligent DSP RF Receiver (Qty. 23 per CBC) e. Listen Technologies LA-164 Universal Ear Speaker (Qty. 23 per CBC) f. Listen Technologies LA-430 Intelligent Earphone/Neck Loop Lanyard (min. 6) g. Listen Technologies LA-LA-381-01 Intelligent 12-Unit Charging Tray (Qty. 1) h. Listen Technologies LA-304 Assistive Listening Notification Signage Kit (Qty. 1)

H. Wired Microphones and Accessories:

1. A pair of wired microphones will be provided as a “starter” set for the school Theater. Microphones shall include one (1) for general instrument pickup and one (1) for vocal pickup. 2. Provide one (1) dynamic instrument microphone. Performance criteria: 40 Hz to 15 kHz frequency response with cardioid polar pattern. Acceptable products, the following or an approved equal: Sure SM57 3. Provide one (1) wired dynamic vocal microphone. Performance criteria: 50 Hz to 17 kHz frequency response with cardioid polar pattern, dynamic range ≥105 dB. Includes two stage pop filter to reduce wind and breath sounds, a low frequency roll-off switch, and an on/off switch. Acceptable products, the following or an approved equal: Sure SM58S 4. Accessories: Include windscreen, microphone stand (Atlas MS20 or equal), and microphone cable (25’ with XLR both ends) for each microphone.

I. Wireless Microphones & Accessories: Shure

1. Provide a total of four (4) wireless microphone systems with one (1) vocal handheld and (3) bodypack systems with earset microphones. 2. Rackmount receivers shall feature four receiver channels in a single 1U rugged metal chassis with internal power supply, one touch quick scan frequency selection, XLR connections, Dante digital network audio over Ethernet, battery level indicator, and removable antennas for connection to an antenna distribution system.

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3. Working range should be at least 300 feet for the basic receivers depending on conditions (not including antenna distribution system). 4. Handheld and bodypack transmitters shall use AA batteries with a life of up to 14 hours, have a typical RF transmitter output of 10 mW 5. Handheld microphone shall match the characteristics of the wired dynamic vocal microphone specified above. 6. Provide an antenna distribution system for remote location of ½ wave omnidirectional antennas. Install antennas (two required) at the locations specified herein and in the Drawings using 50-ohm RG58 cable at approximately 15' above floor (coordinate with Architect prior to rough-in). 7. Select wireless frequency bands with the most available channels and least interference based on local conditions. All wireless microphones are to operate in the same band. 8. Earset microphone shall feature a low profile subminiature electret condenser element and thin, flexible boom omnidirectional microphone designed for speech and vocals. 9. Acceptable products, the following or an approved equal: One (1) Shure ULXD4Q receiver, one (1) Shure ULXD2/SM58 transmitter, and three (3) Shure ULXD1 transmitters with three (3) Shure MX153 earset microphones, one (1) Shure UA844SWB antenna distribution system, and two (2) ½ wave omnidirectional antenna (matching the selected frequency band)

J. Mixing Board, Processing, and Audio I/O:

1. Audio signal routing for the project uses the Audinate Dante digital transmission protocol. The mixing board and most of the system inputs and outputs have Dante capability built in. Substitution of an alternate digital transmission protocol is not acceptable. 2. Provide a digital mixing board with a minimum of 16 selectable balanced mic or line level inputs (with selectable 48V phantom power) and a minimum of 16 line level audio outputs with capability of at least 32 total inputs through Dante. Mixing board shall include touch screen control in addition to the 16+1 faders. On board signal processing shall include graphic EQ, 4-band parametric EQ, mixing, delay, compressors, limiters, gates, effects, and A/D and D/A conversion. A small display section above each fader shall provide color-coded channel information. 3. Mixing board shall include Dante networking, provide Yamaha NY-64D Dante card. 4. Sampling frequency shall be minimum 48kHz with a minimum processor dynamic range of 110 dB(A). Frequency response: 20 Hz to 20kHz, +0.5 -1.5dB 5. System shall feature 100 mm motorized faders, color coded channel information above each fader, and a touch screen display for system menus, scene creation, storage, and recall. Digital mixing board shall have built in wired network connectivity and be able to mirror controls through an iOS application. Recording/playback through a PC shall support up to 34 tracks and USB storage device up to 2 tracks (through USB port). 6. Acceptable products, the following or an approved equal: Yamaha TF1

K. Main Loudspeakers, Subwoofers, and Rigging

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1. Refer to Drawings for quantity and locations. Theater speaker system shall consist of three (3) full-range speakers and two (2) subwoofer speakers with additional speakers for the Green Room. The main speakers will be installed in a left/center/right configuration. All three main speakers are to be mounted behind acoustically transparent fabric clouds or curtains using wall brackets. Each of the two subwoofers will be installed at floor level to the left and right of the stage where indicated behind a custom opening at the wing walls. Two (2) self- powered portable stage monitor speakers shall also be provided. 2. All three main Theater left/center/right speakers shall be two-way designs containing separate high and low frequency drivers. High frequency transducer shall be a minimum 3” voice coil compression driver mounted to a waveguide and low frequency transducer shall be a minimum 12” diameter cone woofer with 4” diameter voice coil in a 15-ply birch plywood enclosure. Enclosure shall incorporate a 16-gauge perforated steel grille internally lined with acoustically transparent foam. Nominal coverage angle (-6 dB) for the bleacher speakers shall be axisymmetric at 90 degrees in both horizontal and vertical planes. Speakers shall have a nominal impedance of 8 ohms and an average sensitivity of at least 95 dB SPL, 1W/1M and a rated thermal power handling of at least 550 watts. Frequency response shall be at least 50 Hz to 15 kHz, -10 dB or flatter. Speakers shall include all mounting hardware including the optional yoke mount that allows vertical aiming adjustment to hold without slipping over time. Speakers shall be factory finished in black (upon approval of the Architect). Acceptable products, the following or an approved equal: QSC AP5122 (provide 3) and QSC AP-YM12 (provide 3) 3. Provide and install two (2) subwoofers to provide low frequency support for both the main house system and the active reverberation system. Each subwoofer cabinet shall contain two 18” diameter, 4” voice coil long excursion drivers in a front-loaded vented cabinet. Frequency response (half space) shall be at least 25 Hz to 150 Hz -10 dB or flatter. Subwoofers shall have a rated noise power rating of at least 1100 watts and an average system sensitivity of at least 100 dB. Acceptable products, the following or an approved equal: QSC SB-2180 (Qty. 2). 4. Provide two (2) self-powered monitor speakers for the stage. Speakers shall be two-way designs containing a separate high frequency and low frequency transducer. High frequency transducer shall be a minimum 1.4” diaphragm compression driver and low frequency transducer shall be a minimum 12” diameter cone woofer with 2.5” diameter voice coil in a painted ABS polymer or plywood enclosure. Nominal coverage angle (-6 dB) shall be 75 degrees conical. Speakers shall have a built-in class-D power amplifier capable of producing 2000 watts split between the two drivers. Frequency response shall be at least 60 Hz to 18 kHz, -6 dB or flatter. Powered speakers shall both XLR and ¼” line inputs and outputs with gain control to serve as a stand-alone system without needing to plug into the main system. DSP shall be built-in to include presets, scenes, and adjustments to loudspeaker performance. Speaker shall include 35 mm pole sockets that allow up to a 7.5 degree downward tilt. Speakers shall be factory finished in black. Acceptable products, the following or an approved equal: QSC K12.2 (Qty. 2). 5. Provide two (2) self-powered speakers for the Control Room monitors. Monitor speakers shall be two-way designs containing a separate high frequency and low frequency transducer. High frequency transducer shall be a minimum 1” diameter soft-dome driver and low frequency transducer shall be a minimum 5”

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diameter cone woofer. Speakers shall have a built-in class-D power amplifier capable of producing 40 watts to each driver. Powered speakers shall include both XLR and ¼” line inputs and outputs with gain control. Speakers shall be factory finished in black. Acceptable products, the following or an approved equal: JBL LSR305. 6. Provide two (2) in-ceiling loudspeakers operating on a 70 Volt line for the Green Room ceiling. All ceiling speakers are to be mounted in the T-bar grille using supplied mounting hardware. Speakers shall be two-way designs containing a separate high frequency and low frequency transducer. High frequency transducer shall be a minimum 3/4” silk dome tweeter (horn loaded) and low frequency transducer shall be a minimum 6” diameter polypropylene cone woofer with integrated back can enclosure. Nominal coverage angle (-6 dB) shall be 110 degrees conical. Speakers shall have a nominal impedance of 8 ohms and an average sensitivity of at least 89 dB SPL, 1W/1M and a rated thermal power handling of at least 30 watts. A multi-tap transformer shall be included for 70 V systems with four taps up to 15W. Speakers shall include all mounting hardware. Acceptable products, the following or an approved equal: QSC AC-C6T (Qty. 2). Include volume control, Atlas Sound AT100D or equal. 7. Use mounting brackets provided by the manufacturer to attach speakers to the structure. Alternative rigging support can be provided (with tilt control). Any rigging/supports shall include PE stamped drawings for speaker attachment.

L. Amplifiers:

1. Provide one (1) four channel class-D amplifier with onboard DSP in a 2RU chassis rated at a minimum of 800 watts per channel at an 8 ohm continuous load, all channels driven. Provide one (1) four channel class-D amplifier with onboard DSP in a 2RU chassis rated at a minimum of 1100 watts per channel at an 8 ohm continuous load, all channels driven. 2. Performance criteria: Maximum Total Harmonic Distortion (THD) of 1.0% with 4 or 8 ohm load, frequency response (8 ohm) of 20 Hz to 15 kHz +/- 0.2 dB. 3. Amplifier shall include onboard DSP for speaker processing on all four channels including parametric EQ, delay, and crossover filters. Inputs and outputs shall be through Euroblock connectors. Amplifier to include power conserving technology including switchmode power supply and multi-stage sleep mode. Amplifier shall have configurable output of either 70V direct or typical impedance speaker loads. 4. Acceptable products, the following or an approved equal: QSC CXD4.3 (1) and QSC CXD4.5 (1)

M. Equipment Racks and Rack Accessories: Middle Atlantic

1. Provide and install one (1) floor-mounted equipment rack at the designated location per the Drawings to house most of the system components including the active reverberation system. Provide and install one (1) under-desk equipment rack for use at the Theater Control Booth. 2. Main equipment racks (AVR-1): Furnish one (1) EIA compliant floor mounted gangable equipment rack to accommodate 19” wide equipment. Rack shall feature fully welded construction with a minimum of 41 rack units (1.75” each RU) of usable vertical space and a depth of 38”. Rack shall carry a minimum 5-year

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warranty. Acceptable products, the following or an approved equal: Middle Atlantic BGR-41-38. 3. Control Booth equipment rack (AVR-2): Furnish one (1) under-desk equipment rack to fit under the mixing board desk with a minimum of 14 rack units of usable vertical space. Rack rail shall be 11-gauge steel with tapped holes in universal EIA spacing. Equipment rack shall otherwise be constructed of 5/8” thick, furniture grade MDF finished in a black, wood grain laminate finish. Rack shall carry a minimum 5-year warranty. Acceptable products, the following or an approved equal: Middle Atlantic BRK-14. 4. Accessories: Provide rack-mount screws and rack mount kits for all equipment to be mounted in the rack if none are included by the equipment manufacturer. Provide 1-3/4 inch vent panels between power amplifiers and remaining equipment. AV Contractor shall provide sufficient power outlets with surge protection to accommodate all rack-mounted equipment.

N. Power Distribution and Sequencing: Lowell Furnish one (1) power sequencer controller for sequential system power-up of the main AV system equipment rack AVR-1. Note that per Yamaha, the active reverb system in AVR-1 must remain on 24/7 and will not use sequencing. Additional distributed power control will be provided. Sequencing is intended to protect and properly energize sensitive and high amperage equipment. Sequencer shall feature simple contact closure activation and include sequence signal input and output RJ45 connectors for connection to other units. Acceptable products, the following or an approved equal: Lowell SEQ-8 (1), Lowell RPC-20SCD (3), Lowell RPC-15 (2), Lowell ACS-1510-RPC (1), and additional power strips as required for circuit distribution. Power sequencing control will be via the Extron IN1808 matrix switcher with control.

O. Wiring and Accessories:

1. Furnish speaker, audio, Cat 5e/6/6A data, fiber, HDMI, control, and any other cables for point to point connections between equipment as needed. While data network cabling is outside of the scope of the AV Contractor, AV Contractor is still required to provide all data cabling dedicated for audio and video data transmission, and for connection of AV components to the campus LAN. Use the highest data capacity/speed cabling allowed for the equipment connected (use Cat 6A cable where possible instead of Cat 5e). See drawings for dimensional estimates. 2. 12 AWG overall size or larger required for Theater speakers and all subwoofers, 2 conductors, overall jacket and plenum rated. Bi-amplified speakers can use 4 conductor speaker cable. 14 AWG overall size is acceptable for connection to active reverberation system speakers and for speakers in other spaces. All speaker cable shall be plenum rated. West Penn, Belden, Canare, or equal. 3. Installed microphone/line level cable shall be stranded four (4) or two (2) conductor twisted pairs, 22 AWG overall size or larger for standard microphone cables, plenum rated where required, and feature aluminum foil shielding, an exterior PVC jacket, and drain wire. Acceptable cable manufacturers, the following or an approved equal: Canare, Belden, or West Penn. 4. All microphone plugs at input plates shall be female XLR, Pro Co WP1004 or equal.

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5. Line level audio outlets at plates shall be male XLR, Pro Co WP1014 or equal. 6. Speaker outlets (at permanently mounted speakers) shall be Pro Co WP1009 or equal with D-Series 4-conductor Speakon connector. 7. All plates shall be permanently engraved and numbered per Drawings. 8. Provide additional plates for remote antenna (BNC for wireless microphones, Pro Co WP1019 or equal). Use 50-ohm RG58 cable for antennas. 9. Provide line level audio interconnects between rack mounted components, provide CAT5e or better cable as required for control system and data connections, provide cable for 12V control/triggers, and any other cables as needed for a complete and functional system. 10. Leave additional length coiled inside speaker back box, junction boxes, and at equipment racks as needed for installation and to facilitate easy replacement of speakers or other components as needed. 11. Provide plenum rated cable where required per NEC. Shielded cables shall be insulated. 12. In addition to the permanently installed cables, provide at four (4) minimum 6-foot long pre-terminated HDMI cables, at least four (4) minimum 25-foot microphone cables with XLR connectors at both ends, and at least seven (7) terminated cables for connection of intercom bodypacks to wall plates. 13. Provide all required gigabit Ethernet switches as required to support Dante audio, intercom, and video data routing. Dante network shall include separate network switches for both Primary and Secondary networks for redundancy. Provide PoE switchers where required. All digital audio/video/intercom networks shall be configured to form a continuous ring, such that there are always two paths between any switch and end connection to maintain connection in case of a switch failure.

PART 3 - EXECUTION

3.1 INSPECTION

A. Prior to installation of the work of this Section, carefully inspect and verify that installed work of all other trades is complete to the where fabrication and installation of the work of this Section may properly commence.

B. AV Contractor to coordinate and conduct a site walk with the Electrical Contractor to ensure all required conduit, junction boxes, pull wire, power, etc. as required to install a complete and fully functional AV system is in place prior to installation of gypsum board or other finish materials.

C. Verify that specified items may be installed in accordance with the approved design.

D. In event of discrepancy, immediately notify Architect. Do not proceed in discrepant areas until discrepancies have been fully resolved. Commencing work denotes acceptance of existing conditions.

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3.2 INSTALLATION

A. Supply all necessary equipment, cabling, labor, system setup, and other services necessary for the proper installation of the products/system as indicated on the Drawings and specified herein for a complete and finished installation. Equipment shall be completely installed, tested and in operating order at time of substantial completion. Proper operational and network support control functions shall be verified.

B. Install in accord with reviewed Shop Drawings, referenced standards, manufacturer's installation recommendations or as directed by Architect. 1. Set work accurately in locations, alignment and elevations, and make plumb, level, true and free from rack, measured from established lines and levels. 2. Identification: Permanently label all controls, jacks, XLR receptacles, microphone box plates, line/speaker level receptacles, AV data jacks, and intercom receptacles.

C. Attach projection screen per Architectural drawings and details. Set all equipment square and level.

D. All wiring throughout entire system shall be installed in conformance with standard industry practice. Wiring and cable shall be continuous and splice-free for the entire length of run between designated connections or terminations. Correct the following unacceptable wiring conditions: 1. Deformed, brittle or cracked insulation 2. Insulation shrunken or stripped further than 1/8 inch away from the actual point of connection within a connector or on a punch block. 3. Cold solder joints. 4. Flux joints. 5. Ungrometted, unbushed or uninsulated wire or cable entries. 6. Deformation or improper radiusing of wire or cable.

E. All audio cables within cabinets shall be bound with plastic cable ties so that cables are in tight contact for their entire length. Dress, lace or harness wire and cable to prevent mechanical stress on electrical connections. No wire or cable shall be supported by a connection point.

F. Grounding 1. Provide a single point grounding system. 2. Component grounds, inter-connections, and cable shield ground shall be rendered such that system shall be free from ground loops, hum, noise, instability, and possible electrical shocks. 3. All audio circuit wiring external to equipment cabinets shall be of type of cable that will allow shields to be insulated from ground and audio circuits. Shields shall be grounded at point of lowest audio level only and shall be free of any other ground for their entire length. Where two (2) cables join or connect together on terminal strip, shields shall be insulated from all other conductors and connected together in manner similar to cable conductors.

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G. Maintain signal continuity for balanced lines connected to and between balanced equipment: Pin #1 to Pin #1, Pin #2 to Pin #2, Pin #3 to Pin #3. Maintain electrical polarity even if devices of different manufacturers use varying "pin hot" wiring connections.

H. All cables entering cabinets shall be identified with Panduit SSM4S C or PLF/MA C marker tie flags. Upon completion of installation, six (6) copies of one line "as built" wiring diagram shall be furnished to Architect.

I. Batteries: Provide batteries in all equipment requiring batteries and not provided by manufacturer. Batteries shall be as recommended by manufacturer.

J. Electrical Contractor to provide and install conduit, junction boxes, power, and other infrastructure required to support audiovisual systems per the Drawings and Specifications. Low Voltage Contractor to provide and install all data network devices and wiring; except where such devices and wires are strictly for the transport of audio, video, AV control, or intercom signals. AV Contractor is responsible for supplying and installing all Ethernet switches, CAT 5e/6/6A wiring and terminations, fiber optic cable and terminations, etc. as required for the dedicated transport of audio, video, AV control, or intercom signals.

K. Loudspeakers: Speakers are to be mounted at the locations and heights indicated on the Drawings and Specifications herein. Orient speakers for the most even coverage verified by field tests.

L. DSP, Mixing Boards, Matrix Switchers, and Dante: Speaker processing will be programmed in the amplifier DSP per the recommendations from the speaker manufacturer for optimum performance. Mixing boards shall be pre-programmed by the AV Contractor for basic functions with suggested settings including at least 4 preset conditions: “Video Presentation”, “Typ. Assembly”, “Orchestra”, “Play”, etc. Final presets to be determined with the end users. Dante enabled I/O devices, switchers, etc. shall be pre-configured and labeled with all settings documented in the System Technical Manual. Wall control tied to the matrix switcher shall include (at a minimum) master volume control, selection of system presets, selection and control of source devices, projector control, and projection screen control. Presets can also be programmed automatically based on time of day and date. Contractor should load an uncompiled program into the system’s memory, if applicable.

M. Active Reverberation System (Yamaha AFC) shall be tuned, adjusted, and programmed by a Yamaha representative familiar with such systems. Reverberation time settings must be approved by the Acoustical Engineer and Owner’s representative prior to final acceptance. Control of the active reverberation system including presets shall be through a separate menu on the Extron control system.

N. Unless otherwise noted, mount AV input plates to installed junction boxes at 18” above the floor. AV control interfaces to be mounted to installed junction boxes at 48” above the floor.

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3.3 ADJUSTING AND CLEANING

A. Completely adjust all structural leveling supports for proper electric screen operation without jamming due to deflection. Adjust operating hardware for smooth functioning and tight perimeter seals.

B. Cleaning: Remove grease, dust, dirt, stains, fingerprints, etc. from sight-exposed surfaces on equipment and rack/cabinet. Repair and touch up marred surfaces. Broom clean room and other areas where work was performed at the end of each day.

3.4 PROTECTION

A. Protect work and materials of this Section prior to and during installation and protect the installed work and materials of other trades.

B. In the event of damage, make all repairs and replacements necessary to the approval of the Architect at no additional cost to the Owner.

C. Exposed finishes shall be free from scratches, dents, permanent discolorations and other defects in workmanship or material.

3.5 CONSTRUCTION MEETINGS

A. The Contractor shall schedule construction meetings at the jobsite as follows: 1. Prewire meeting shall occur after raceways are installed and prior to pulling of any wire or cable. 2. Pre termination meeting shall occur after wire and cable has been installed and prior to termination.

B. Meetings shall be scheduled by the Contractor and shall include the Project Inspector, Owner's Representative, the electrical subcontractor, and the System subcontractor as a minimum.

3.6 TESTING AND TRAINING

A. After all equipment specified herein has been installed and is in operating condition, performance tests shall be conducted by Contractor to determine that installation and components comply with these specifications. Contractor shall furnish competent personnel for these tests.

B. Testing shall be scheduled with the Owner and the Project Inspector and shall occur after receipt by Architect of Contractor's written certification of completion, record one line diagram, wiring diagrams, maintenance and operation manuals, and other "As Built" data required by these specifications. Tests shall be scheduled with School before occupancy occurs.

C. Energize and commission equipment in accordance with manufacturer’s instructions. Test all microphone inputs with a “live” microphone. Test wireless systems for clarity and range capabilities. Test all source devices. Set gain levels for all microphone inputs to provide necessary headroom without feedback. Verify that equipment rack and individual equipment chassis are properly grounded. Test AV controls to ensure proper operation.

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D. Calibrate video projectors for optimum brightness, contrast, color, tint, and sharpness for each input. Align and provide reference distance locations for optimum throw. Note settings in the System Technical Manual.

E. Provide tests and measurements of the sound amplification system using a Third Octave Band Real Time Analyzer with filters meeting ANSI S1.11 Class III and sound measurement system whose free field response satisfies tolerances of ANSI S1.4, Type II. A pink noise generator should be used to equalize the system to a “flat” frequency response using parametric equalizers and time/phase alignment. Use proper equalizing techniques to achieve “flat” response, try to “cut” problematic peaks in the response instead of “boosting” dips. Desired system response is: 50 Hz to 15 kHz, ±3 dB or less variation. Uniformity of distribution in the seating area shall be checked by measuring sound levels at various locations from front-to-back and side-to- side throughout the seating area and noting variations in level readings, while keeping the source constant. Desired SPL response throughout the room is ±3 dB or less variation. Ensure main speakers are time aligned with respect to the input signal and delay settings.

F. Supplier shall demonstrate operation of systems and provide training to all end users, administrative staff, and system administrator. District shall provide a list of authorized personnel for training sessions. Coordinate times of instruction with District, at District’s convenience. Supplier shall provide a minimum of 2 hours of user instructions to school staff and 4 hours of user/maintenance instructions to District maintenance personnel. Instruction periods shall not coincide and shall be scheduled with District, not school staff. Deliver to Owner at time of demonstration, all settings and codes programmed into system. Furnish three copies on manufacturer’s standard programming worksheets.

G. Train Owner's maintenance personnel and operators in the procedures and schedules involved in operating, troubleshooting, servicing, and preventative maintenance of the system. Provide a user manual for controls and menu navigation. Provide a copy of the DSP and/or mixing board software settings and system configurations in electronic format. Include an internal signal flow diagram for the DSP/mixing board software configuration in the System Technical Manual.

- END OF SECTION -

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Yamaha Commercial Audio Design Support

Oakbrook Academy of Arts Fairfield, CA Fairfield-Suisun Unified School District Oakbrook Performing Arts Building AFC4 - Acoustic Enhancement System Proposal For Acoustical Engineering Consultants - Brian Smith Version 1.2 - 6/24/20 Joe Rimstidt - Yamaha Corporation of America

June 24, 2020 Page 1 of 10 . Yamaha Commercial Audio Design Support

Table of Contents

1.Disclaimer ...... 3 2.Overview ...... 3 2.1. Background 3 2.2. Primary Goals of this Document 3 3.System Description ...... 4 3.1. Early Reflection System 4 3.2. Reverberation System 4 3.3. Stage System 4 4.Microphone and Speaker Locations ...... 5 4.1. Plan View 5 4.2. Section View 5 4.3. Front View 6 4.4. 3D View 6 5.System Diagram...... 7 6.Rack Diagrams ...... 8 7. Equipment List and Package List PriceLists and Pricing Information ...... 8 8.Related or Ancillary Information...... 9 9.Items to Consider ...... 9 9.1. Optional Changes to This Design Concept 9 9.2. Other Items to Consider 10 10.Summary ...... 10

June 24, 2020 Page 2 of 10 . Yamaha Commercial Audio Design Support

1.Disclaimer This document is intended to facilitate conversations between Yamaha and customers related to planning for an audio systems in their facility. This document may be prepared at the request of a consultant, integrator, or end-user. If pricing is included for budget estimation, the pricing will be at suggested retail so the numbers may be shared with consultants and end-users.

This design support from Yamaha is not intended to substitute for proper detailed design work and drawings by the consultant and integrator involved. The Yamaha documents are more conceptual in nature and we rely on those more directly involved in the details of the project to make final decisions. Feel free to consult or ask questions of Yamaha regarding any information presented. 2.Overview 2.1. Background Yamaha has been approached for input regarding a potential variable acoustics system for a new PAC being constructed at Oakbrook Academy of Arts in Fairfield, CA. It is our understanding the projects is still in a budget and scope phase, but the consultant has asked for a budget estimate for an AFC system to be installed in the venue.

The current request is to use a similar approach to similar hight schools we have worked on with this firm in the past. This will involve an Early Reflection system and Reverberation system for the main auditorium itself. Then these signals would be merged for speakers located above the stage to provide acoustical enhancement for the stage area. 2.2. Primary Goals of this Document • Propose an AFC4 system configuration including approximate microphone and speaker locations to establish an overview of the design approach.

• The goal is to provide system with a balance of budget and performance appropriate for the venue.

• The goal of the AFC system is to provide the ability to generate and adjust early reflections and late reverberant energy changing the acoustical conditions of the space. Systems can normally achieve 3X or more of their natural RT60 time and in general 4 to 6 presets are created for different types of performances.

• Provide equipment lists with list pricing information to assist in budget planning

June 24, 2020 Page 3 of 10 . Yamaha Commercial Audio Design Support 3.System Description 3.1. Early Reflection System • Microphones • 4 x Cardioid microphones • Located above the front lip of the stage • Spaced evenly across the width of the performance area • Located as low as possible to provide coverage from as far upstage as reasonable • Optional to include additional microphones to enhance coverage of performance area for ER system • Speakers • 8 x IF2108 full-range loudspeakers • 4 on each side wall • Spaced about 10’ apart, towards the front of the room • Approximately 9’ from the floor level to the bottom of the loudspeakers

3.2. Reverberation System • Microphones • 4 x Omnidirectional • Located at or near the ceiling • Just beyond Dc from the stage • Spaced approximately 6’ apart • Speakers • 28 x VXC8, 8” full-range, 2-way ceiling speakers • Installed in ceiling above the audience area • Arranged in a grid for even coverage

3.3. Stage System • Blended signals from Early Reflection and Reverberation Systems are blended and played back to loudspeakers distributed above the stage area

• Speakers

• 18 x IF2205 full-range loudspeakers

• Suspended from stage pipes using C-brackets, pointing straight downward

• Positioned with grills at the height of the bottom edge of border curtains

• Unit and positions should be clearly marked and identified to ensure return of SAME UNIT to SAME POSITION should the speakers be removed to make the pipes available temporarily for other uses.

June 24, 2020 Page 4 of 10 . Yamaha Commercial Audio Design Support 4.Microphone and Speaker Locations 4.1. Plan View

4.2. Section View

June 24, 2020 Page 5 of 10 . Yamaha Commercial Audio Design Support

4.3. Front View

4.4. 3D View

June 24, 2020 Page 6 of 10 . Yamaha Commercial Audio Design Support 5.System Diagram

June 24, 2020 Page 7 of 10 .