TYPICAL SPECIFICATIONS
Frequency Response Mic/Line Input to any output, 20Hz - 20kHz ...... <1dB
THD + N Mic sens. -30dBu, +20dBu at all outputs @1kHz ...... <0.006%
Noise Measured RMS, 22Hz to 22kHz Bandwidth Mic E.I.N. @ unity gain,150Ω source impedance...... -128dBu Mix Output, 40 inputs routed to mix ...... <-82dBu Group & Centre Outputs ...... <-83dBu Aux Outputs (GB2 Groups only) ...... <-80dBu Matrix Outputs...... <-89dBu GRAHAM BLYTH Graham Blyth, Soundcraft’s co-founder and Technical Crosstalk Input Channel Mute...... <-97dB Director, has taken the well established and classic (@1kHz, typical) Input Fader cut-off...... <-95dB Pan isolation ...... <-75dB Soundcraft microphone preamplifier to a new level of Mix route isolation...... <-97dB performance, resulting in the new GB30 preamp which Group route isolation...... <-97dB boasts extraordinary clarity with exceptionally controlled Adjacent channel crosstalk...... <-99dB overload characteristics. Group to Mix...... <-84dB Aux Send pots offness (typical) ...... <-84dB Soundcraft’s legendary 4-band EQ has also been Matrix Send pots offness (typical) ...... <-84dB PROFESSIONAL improved further with the addition of elements derived MIXING CONSOLES from Soundcraft’s highly successful MH Series consoles. CMRR Typical @ 1kHz ...... 80dB PLEASE NOTE: GB2R noise, crosstalk and CMRR specifications exceed the standard GB Series This new design delivers the sound of the classic ‘British specifications, please check the website for full details EQ’ enhanced even further with more focused HF and LF shelving sections. Input & Output Mono & Stereo Mic Inputs...... +15dBu Max Levels Mono & Stereo Line Inputs ...... +30dBu Stereo Returns & Insert Returns ...... +20dBu Any output ...... +20dBu Nominal Operating Level ...... 0dBu Headphone Power...... 2 x 250mW into 200Ω
Input & Output Mic Inputs...... 2kΩ Impedances Line Inputs and Stereo Returns ...... 10kΩ Input channels Insert Return...... 5kΩ with EQ in, otherwise 3kΩ Mix, Group, Aux, Matrix & Direct outputs...... 150Ω Insert sends ...... 75Ω Recommended Headphone Impedance...... 100 - 600Ω Soundcraft Registered Community Trade Mark/RTM No. 000557827
SOUNDCRAFT High pass filter (Mono input) ...... 100Hz, 18dB per octave HARMAN INTERNATIONAL INDUSTRIES LTD., EQ (Mono input) HF ...... 13kHz, +/-15dB, 2nd order shelving CRANBORNE HOUSE, CRANBORNE ROAD Hi-Mid...... 550Hz-13kHz, +/-15dB, Q=1.5 POTTERS BAR, HERTS, EN6 3JN, UK Lo-Mid ...... 80Hz-1.9kHz, +/-15dB, Q=1.5 T: +44 (0)1707 665000 LF...... 80Hz, +/-15dB, 2nd order shelving F: +44 (0)1707 660742 E: [email protected] EQ (Stereo input) HF ...... 13kHz, +/-15dB, 2nd order shelving SOUNDCRAFT USA Hi-Mid...... 2.5kHz, +/-15dB, Q=0.8 8500 BALBOA BLVD. Lo-Mid ...... 450Hz, +/-15dB, Q=0.8 LF...... 80Hz, +/-15dB, 2nd order shelving NORTHRIDGE, CA 91329, USA T: +1-818-920-3212 F: +1-818-920-3208 Metering Input channels (GB4/GB8)...... Single tri-colour 4-segment LED bargraph E: [email protected] Outputs (GB4) ...... 7 tri-colour 12-segment LED bargraphs Outputs (GB8) ...... 11 tri-colour 12-segment LED bargraphs, www.soundcraft.com + Meterpod with 3 VU meters (L/R/C) Outputs (GB2/GB2R) ...... 2 tri-coloured 12-segment LED bargraphs, Soundcraft reserves the right to improve or otherwise alter any (indicates monitor source level) information supplied in this document or any other documentation supplied hereafter. E&OE 12/07 Power consumption AC mains supply (internal PSU) 85V-270V AC, This equipment complies with the EMC Directive 89/336/EEC 50/60Hz universal input Part No: ZL0627-04 Power consumption...... Less than 150W
Operating conditions Temperature range...... -10ºC to +30ºC Relative humidity...... 0% to 80%
Note: These figures are typical of performance in a normal electromagnetic environment and are often exceeded. Performance may be degraded in severe conditions. All measurements refer to electronically balanced inputs and outputs. THE FULLY PROFESSIONAL LIVE SOUND CONSOLE YOU THOUGHT YOU COULDN’T AFFORD
Drawing on 30 years of Soundcraft The GB8 has plenty of bus power for essential when different zones in a venue And because Soundcraft understands GB8 FEATURES: • Internal jumpers switch pre-fade Aux sends experience, GB Series consoles set new sophisticated mixing applications. All eight require specifically tailored mixes, the way that live sound • 16, 24, 32, 40 and 48 channel frame sizes to pre-EQ standards in professional live sound mixing Aux master controls can be swapped enabling the operator to create engineers work, you’ll find • 19 busses • GB30 mic preamp and precision on a budget. The GB8 (8-bus) console is with eight Groups, and all Auxes sub-mixes of the Group, L-R an intuitive control • 4 full feature stereo channels equalisation circuitry packed with the features you need to create are pre/post switchable globally mix and C (mono) busses. surface and a • 4 stereo returns • Direct outputs on every channel a memorable FOH and monitor mix, per Aux bus from the Master Unlike other mixers in their conveniently angled • 8 Aux sends (all are pre/post • Talkback facility combining totally re-engineered circuit Section. In addition to the eight class, GB Series consoles rear connector switchable) • 100mm faders topology with our ground-breaking GB30 mic Groups, the GB8 has L/C/R and are built to last with a rigid panel, so you can do • 8 sub groups (SWAP with all 8 Auxes) • Switchable 48V phantom powering on every preamp and EQ designs to deliver a sonic eight Aux busses. Four mute steel chassis, high quality all your patching • 11x4 output matrix channel performance rivalling many high-price, high- groups provide quick and easy muting vertically mounted PCB channel without ever leaving the • Record output with limiter • 18dB/octave high pass filter end consoles. of groups of channels, ideal for scene strips and individually nutted potentiometers mix position. • Alternate stereo output with limiter • 4 mute groups changes or where groups of instruments ensuring reliability in both fixed installations • 1kHz oscillator • 12-segment LED metering need to be silenced. And the output matrix is and on the road. • Meterpod with 3 high definition LED VU meters (L/C/R) DUAL-MODE TOPOLOGY, STRAIGHT FROM THE SOUNDCRAFT MH SERIES
With dual-mode topology derived from The GB4 has L/C/R and eight Aux busses in of genuine high-end equalisation. And thanks GB4 FEATURES: • 100mm faders Soundcraft’s acclaimed MH Series, the GB8 addition to its four groups and, like the GB8, to a meticulous ‘ground-up’ approach to • 12, 16, 24, 32 and 40 channel frame sizes • Switchable 48V phantom powering on every and GB4 consoles provide ideal live sound there are four mute groups and an output circuit and mechanical design, the GB Series • 15 busses channel mixing solutions for medium-sized venues matrix for creating zoned mixes. exhibits class-leading noise performance and • 2 full feature stereo channels • 18dB/octave high pass filter including clubs, theatres and houses of channel isolation figures. • 2 stereo returns • 4 mute groups worship. With a single button press on the Like all GB series mixers, the GB4 uses • 8 Aux sends (4 are pre/post switchable) • 12-segment LED metering GB4 (4-bus), any of the first four Aux master GB30 mic preamps which use local When it comes to recording a performance, • 4 sub groups (SWAP with Auxes 1-4) controls can be swapped with the linearisation techniques rather than global the GB4 & GB8 are similarly well equipped • 7x4 output matrix respectively numbered Group fader, providing feedback to deliver an extremely open with pre-/post-fader switchable direct • Record output with limiter the flexibility to work at FOH, Monitors, or frequency response and excellent phase outputs on every channel and a high-quality • GB30 mic preamp and precision equalisation perform both duties simultaneously. linearity.The GB30 EQ borrows the innovative limiter on dedicated record outputs fed from circuitry designs developed for the Soundcraft MH4 the L-R mix bus. • Direct outputs on every channel Dedicated record outputs with a high-quality console, providing GB users with the benefits • Talkback facility limiter are fed from the L-R mix bus. SMALLER SCALE MIXING, WITHOUT THE COMPROMISES
Available in 16, 24 and 32 channel Along with six Aux busses and an integral the local channel and the line inputs act as GB2 FEATURES: • Switchable 48V phantom powering on every configurations, the GB2 is designed for 6 x 2 matrix, four subgroups are provided as a stereo return to the mix bus. Selecting the • 16, 24, 32 channel frame sizes channel installed sound and A/V applications that two stereo pairs, with a unique facility for line input to the local channel overrides the • 12 busses • 100Hz high pass filter don’t require all the sophisticated adjusting the width of the stereo signal mic inputs. • 2 full feature stereo channels • 12-segment LED metering functionality of the GB4 and GB8. However across the stereo mix. The channel pan • 2 stereo returns (on stereo channels) • Record output the GB2 is a genuine GB Series console in settings are retained on the group outputs, • 6 Aux sends every respect, with sound quality assured by while the degree of stereo separation to the • 4 sub groups (paired) GB30 Mic Pre and Equaliser designs, and mix bus is independently adjustable from full • 6x2 output matrix reliability by the same rugged build quality stereo through to mono. • GB30 mic preamp and precision equalisation that has made the GB4 and GB8 so circuitry dependable in demanding professional The GB2 also features two stereo input • Direct outputs on every mono channel applications. channels, with separate mic and line inputs. • Talkback facility Line inputs on the stereo channels can also In normal use, the mic inputs are routed to • 100mm faders act as a stereo return. GB MIXING POWER IN A COMPACT RACK-MOUNTING FORMAT
With a convenient, rack-mountable format, Both models feature the same GB30 Mic Pre Patching in outboard processors is made GB2R FEATURES: • 6 Aux Outputs the GB2R packs GB Series features and and Equaliser designs found in all GB simple by two Stereo Returns with level • 19" rack-mountable or tabletop mixer • Direct Outputs on every mono channel sound quality into a compact mixer, ideal for mixers, ensuring exceptional sound quality. controls to Mix or Sub Group Outputs (12/2 • 12/2 channel version with 12 mono inputs • 100mm faders use in fixed installations or a touring rack. In addition, there are six Aux busses, version only) and to Aux 1 & 2. and 2 stereo inputs, stereo Sub Group • Switchable +48V phantom power on every switchable phantom power on every mic Output, Mix and Mono Sum Outputs – total mic input Available in 12 mono/2 stereo channel input and direct outputs for every channel. In addition to a stereo sub group, the GB2R inputs to mix 26 • 100Hz high pass filter (GB2R 12/2) or 16 mono channel (GB2R 12/2 adds two fully-featured stereo input • 16 channel version with 16 mono inputs, • 12-segment LED metering 16) versions, the versatility of the GB2R is Precision output level control is facilitated by channels, each with two Mic inputs and Stereo Mix and Mono Sum outputs – total • Internal switched mode power supply enhanced by a rotatable connector pod for dual faders on the master stereo output, separate Line inputs, switchable direct to Mix inputs to mix 22 • Record output top or rear cable entry, enabling use in a and for capturing live performances phono as another effects return, or into the local • 8 (GB2R 16) or 10 (GB2R 12/2) busses variety of mounting configurations. connectors provide a high-quality direct channel (overriding the Mic input). • 2 stereo inputs (GB2R 12/2 only) recording solution. • GB30 mic preamp and precision equalisation Rear connector panel can be rotated to circuitry facilitate use on a desktop or in a rack. GB8 & GB4 INPUTS GB2 & GB2R INPUTS
MONO INPUT MODULE Level Control and Routing MONO INPUT MODULE EQ Section On the GB4, the signal on each fader can be routed to the L-R mix (via GB Series consoles incorporate the GB30 4-band equaliser section - Mic Input the Pan control), the C (mono) bus and Groups 1&2 and 3&4. On the Mic Input based on that used in the high-end MH Series. Both the HF and LF A balanced XLR connector accepts balanced or unbalanced mic GB8, the signal can additionally be routed to Groups 5&6 and 7&8 A balanced XLR connector accepts balanced or unbalanced mic shelving sections have steeper slopes than usual which substantially signals. (Fig. 2). signals. reduces mid frequency harshness in the HF band and muddiness in the Line Input Line Input LF.This increase in “cleanliness” of response is further enhanced by an A balanced 1/4" jack accepts balanced or unbalanced line level Pan A balanced 1/4" jack accepts balanced or unbalanced line level element of undershoot and overshoot in the boost/cut response. It has sources, such as keyboards. Turning the pan control full left or right enables odd or even groups or sources, such as keyboards. two swept mid frequencies carefully selected for optimum control the left or right Mix bus to be accessed individually. during live performances. All bands provide 15dB of cut or boost. The +48V Phantom Power +48V Phantom Power Low frequency equaliser response shelves at 80Hz. The swept Lo Mid Phantom power is individually switchable on every channel, with front Solo/PFL Phantom power is individually switchable on every channel, with front control operates between 80Hz and 1.9kHz. The swept Hi Mid control panel LED indication of status. Each channel can be soloed pre-fader, post-EQ to check levels. PFL panel LED indication of status. operates at frequencies between 550Hz and 13kHz. The fixed High status is indicated via a front panel LED. Phase Reverse Phase Reverse frequency equaliser response shelves at 13kHz. Phase reverse is individually switchable on every channel. 100mm Fader Phase reverse is individually switchable on every channel. EQ Switch Professional grade, 100mm faders provide accurate, consistent control The EQ section can be bypassed using the EQ switch, allowing comparison Input Stage of audio levels and have superb cut-off performance. Input Stage Precision, low noise mic preamps deliver continuously variable gain Precision, low noise mic preamps deliver continuously variable gain of treated and untreated sounds without having to reset controls. between 5dB and 60dB. A Peak LED indicates internal signal levels in Metering between 5B and 60dB. A Peak LED indicates internal signal levels in Auxiliary Sends excess of +18dBu. A 4-segment LED display on each GB4/8 fader strip provides an excess of +18dBu. The 6 Auxiliary sends are pre fade (1 & 2), pre/post selectable (3 & 4) instant reference for the signal level on that channel. High Pass Filter High Pass Filter and post fade (5 & 6). A steep 18dB per Octave High Pass Filter is included straight after the STEREO INPUT MODULE A steep 18dB per Octave High Pass Filter is included straight after the preamp to reduce low frequency rumble on stage and clean up vocal preamp to reduce low frequency rumble on stage and clean up vocal Level Control and Routing performances. The stereo inputs (2 on the GB4, 4 on the GB8) allow connection of performances. On the GB2R the signal can be routed to the Stereo Mix and the Sub stereo sources, or use as sophisticated effects returns. GB8 has four Group (12/2 model only). For GB2, the signal can be routed to the Insert stereo inputs. The stereo input channels share all features with the Insert Stereo Mix, and Groups 1&2 and 3&4. A pre-fade, pre-EQ (but post-HPF) insert point is provided for patching mono input channels, with the exception of the following: A pre-fade, pre-EQ (but post-HPF) insert point is provided for patching in Limiters, Graphic Equalisers or other signal processors. It may also in Limiters, Graphic Equalisers or other signal processors. It may also Pan be used for recording. Connections be used for recording. Turning the pan control full left or right enables odd or even groups or Each channel is equipped with both balanced jack and XLR pairs. The the left or right Mix bus to be accessed individually. Direct Output left or right input can be selected, if required, as a single, mono source Direct Output A direct output is also available on every mono channel with individual to be routed to both paths. Alternatively both the left and right signals A direct output is also available on every mono channel with individual Solo/PFL pre/post fader switching situated on the rear panel. This allows the can be mono-summed. pre/post fader switching situated on the rear panel. This allows the Each channel can be soloed pre-fader, post-EQ to check levels. PFL direct outputs to be equally useful for effects send applications or direct outputs to be equally useful for effects send applications or status is indicated via a front panel LED. multitrack tape feeds. EQ Section multitrack tape feeds. The equaliser section provides 15dB of cut or boost at each of 4- 100mm Fader EQ Section bands: a HF shelf at 13kHz; Hi-Mid at 2.5kHz; Lo-Mid at 450Hz; and a Professional grade, 100mm faders provide accurate, consistent control GB Series consoles incorporate the GB30 4-band equaliser section - LF shelf at 80Hz. of audio levels and have superb cut-off performance. based on that used in the high-end MH Series. Both the HF and LF shelving sections have steeper slopes than usual which substantially Metering reduces mid frequency harshness in the HF band and muddiness in the Both GB2 and GB2R input channels feature peak and signal leds. LF.This increase in “cleanliness” of response is further enhanced by an element of undershoot and overshoot in the boost/cut response. It has STEREO INPUT MODULE - GB2 and GB2R 12/2 only two swept mid frequencies carefully selected for optimum control The 2 stereo inputs allow connection of stereo sources, or use as during live performances. All bands provide 15dB of cut or boost. The sophisticated effects returns. The stereo input channels share all Low frequency equaliser response shelves at 80Hz. The swept Lo Mid features with the mono input channels, with the exception of the control operates between 80Hz and 1.9kHz. The swept Hi Mid control following: operates at frequencies between 550Hz and 13kHz. The fixed High frequency equaliser response shelves at 13kHz. Connections Each channel is equipped with both balanced jack and XLR pairs. The EQ Switch left or right input can be selected, if required, as a single, mono source The EQ section can be bypassed using the EQ switch, allowing comparison to be routed to both paths. Alternatively both the left and right signals of treated and untreated sounds without having to reset controls. can be mono-summed. Auxiliary Sends EQ Section The GB4 has 8 flexible Auxiliary sends which allow the choice of either The equaliser section provides 15dB of cut or boost at each of monitor or effects orientated mixes. Auxes 1-4 are pre-fader and, in 4-bands: a HF shelf at 13kHz; Hi-Mid at 2.5kHz; Lo-Mid at 450Hz; and normal operation, are routed to the rotary Aux masters 1-4. In SWAP a LF shelf at 80Hz. mode, they are routed to Group faders 1-4 and Group meters 1-4, ideal for monitor mixing applications. Auxes 5 to 8 are pre/post switchable - Stereo Return globally assigned selectable per Aux bus from the Master Section. When the XLR/Mic input is selected to the channel, the Line input can be switched to mix as an effects return or as another input to mix. The GB8’s 8 Auxiliary sends (Fig. 1) are globally selectable per Aux bus When the Line input is switched to the channel, the XLR/Mic input is between pre/post fade. The Auxes are routed to rotary Aux masters, disconnected. which all feature SWAP mode.
Fig.1 - Fig.2 - Fig.1 - Fig.2 - Fig.3 - Fig.4 - GB4/8 Channel GB4/8 Channel GB2R 12/2 Mono GB2R 16 Mono GB2R 12/2 Stereo GB2R 12/2 Stereo strip detail, Auxiliary strip detail, Fader channel fader channel fader channel input channel fader GB4 Mono GB4 Stereo Controls. section. panel. panel. section. panel. GB2 GB2 Input Channel Input Channel Mono Input Stereo Input Channel Channel GB4 OUTPUTS & MASTER GB8 OUTPUTS & MASTER
GROUP SECTION Rec/Alt Output THE GB8 OUTPUTS & MASTER SECTION HAVE THE SAME GB4 has a single Rec/Alt section. Outputs are FEATURES AS THE GB4, PLUS THE FOLLOWING Group Outputs provided on impedance balanced 1/4" jacks and PERFORMANCE ENHANCEMENTS. Each Group has an impedance-balanced XLR output unbalanced -10dBv phono connectors. They connector, allowing long cable runs on stage. provide a post-fade send from the L-R mix. The C GROUP SECTION (mono) bus may be added and/or the mix can be Insert Points Group Metering Pre-fade insert points are provided on jack mono summed. A rotary control governs level and a switchable limiter is provided. GB8 has 8 12-segment peak reading bargraph meters which display connectors, for the connection of Limiters, Graphic Group (or Aux 1-8 in SWAP mode) output levels. Equalisers or other signal processors. Talkback Section Group/Aux SWAP Group Metering Once connected, the engineer’s talkback mic can GB8 has eight push buttons which swap the functions of Auxiliary 1-8 GB4 has four 12-segment peak reading bargraph be routed to all Groups and/or Aux 1-2, 3-4, 5-6 & master rotary controls and Group master faders. NB: The 12-segment meters which display Group (or Aux 1-4 in SWAP 7-8. A rotary control governs talkback level. peak reading bargraph meters always display the signal selected to the mode) output levels. Stereo Returns Group faders, i.e. Groups in normal operation, or Auxes when used in Matrix Assignment GB4 has two stereo returns - provided for use with SWAP mode. Four rotary controls per Group allow individual effects units, or as simple stereo instrument MASTER SECTION assignment to Matrices 1-4. inputs. The rotary controls govern level. Ste Ret 1 Rec/Alt Output Matrix Masters and 2 can be routed to Groups 1/2 and 3/4 respectively, or the main L-R mix. GB8 features separate Record and Alternate output sections. Outputs The level at each Matrix output (balanced jack) on are provided on impedance balanced 1/4" jacks and unbalanced the rear panel is controlled by a rotary control, with -10dBv phono connectors. They provide a post-fade send from the L-R a button for AFL. CONTROL ROOM SECTION mix. The C (mono) bus may be added and/or the mix can be mono Auxiliary Masters The control room section allows the engineer to summed. A rotary control governs level and a switchable limiter is The level at each Auxiliary output (balanced jack) monitor either the 2-track return, the C (Mono) provided. on the rear panel is controlled by a rotary control Bus, or the Mix via the control room outputs or with a button for AFL. headphones. A headphone jack is provided for use Talkback Section with headphones with impedances of 100 Ohms GB8 additionally features a 1kHz oscillator with identical routing to the Group/Aux SWAP or greater. Both the control room and 2-track talkback. GB4 has four push buttons which swap the return levels can be altered using the associated functions of Auxiliary 1-4 master rotary controls controls. It is also possible to replace the Mix Stereo Returns and Group master faders. NB: The 12-segment output signal with the 2-track return by pressing “2 GB8 has four stereo returns - provided for use with effects units, or peak reading bargraph meters always display the TRK TO MIX”. This allows easy playing of pre-show as simple stereo instrument inputs. The rotary controls govern level. signal selected to the Group faders, i.e. Groups in music at a single button press, without having to Ste Ret 1, 2, 3 and 4 can be routed to Groups 1/2, 3/4, 5/6 and normal operation, or Auxes when used in SWAP make any alterations to the band’s settings. 7/8 respectively, or the main L-R mix. mode. Metering TRUE VU METERS Routing Three 12-segment Peak reading bargraph meters The signal on each Group fader can be routed to display L-R mix and C (mono) bus output levels GB8 boasts 3 true VU ballistic (ANSI C16.5) LED meters, which display either the L-R mix (via the Pan control) or to the C when the appropriate control room selection is the left, right and C (Mono) outputs. The correct classic VU response is (mono) bus. made. If any input or Auxiliary master is soloed achieved by using 2nd order rectifier filters, not something you see then the PFL/AFL LED illuminates, and the master every day! 100mm Group Faders meters show PFL/AFL levels instead. The Group faders provide 10dB of extra gain above the zero mark, whilst still ensuring smooth Matrix Assignment operation. Each Group is also equipped with AFL. Any of the four Group masters, Left, Right and C (mono) buses can be routed to any of the four MASTER SECTION matrix outputs via individual rotary controls. Connections 100mm Master Faders L-R mix and C (mono) bus outputs appear on Mix and C (Mono) Output levels are controlled by balanced XLR with jack insert points. The L-R mix is custom-built 100mm long throw faders. The Mix also provided on two pairs of balanced jack outputs may be routed to the C (Mono) bus should outputs and one pair of RCA/phono outputs. A only a mono PA be required, or an induction loop balanced XLR input allows a talkback mic to be need to be fed. connected. Two control room outputs for engineer monitoring are available on impedance balanced PSU Indicators 1/4" jacks. A red LED illuminates if the console is powered up, showing the status of the +/-17v voltage rails. 2TRK Inputs A pair of unbalanced -10dBv phono connectors Integral Power Supply labelled “2TRK In” allow pre-show music to be The console is fitted with a high-efficiency SMPS replayed. An independent 2 TRK rotary level control design (Switched Mode Power Supply) unit that is also provided. makes for cooler operation and lighter weight. The PSU is capable of accepting a wide range of AC input voltages without any internal or external switch changes. An external DPS-3 power supply may be connected for redundancy operation.
GB4 Outputs & Master GB8 Outputs & Master GB2 OUTPUTS & MASTER GB2R OUTPUTS & MASTER
GROUP SECTION Rec Output GROUP SECTION - GB2R 12/2 Only CONTROL ROOM SECTION Recording outputs are provided on -10dBv phono Group Outputs Sub Group Output The control room section allows the engineer to connectors. They provide a post-fade send from the monitor either the 2-track return, Mix or Sub Each Group has an impedance-balanced XLR output L-R mix. The Sub Group has an impedance-balanced XLR connector, allowing long cable runs on stage. output connector, allowing long cable runs on stage. Groups (12/2 model only) via the control room outputs or headphones. A headphone jack is Insert Points Talkback Section Insert Points provided for use with headphones with Pre-fade insert points are provided on jack Once connected, the engineer’s talkback mic can Pre-fade insert points are provided on jack impedances of 100 Ohms or greater. Both the connectors, for the connection of Limiters, Graphic be routed to all Groups and/or Auxes. A rotary connectors, for the connection of Limiters, Graphic control room and 2-track return levels can be Equalisers or other signal processors. control governs talkback level. Equalisers or other signal processors. altered using the associated controls. It is also Group Metering Stereo Returns Group Metering possible to switch the 2-track return input to Mix, Selectable 12-segment peak reading bargraph Stereo returns are accommodated via the stereo Selectable 12-segment peak reading bargraph adding to whatever signal is already present on the meters. inputs. These can be switched for simultaneous meters. mix output, by pressing “2 TRK TO MIX”. This allows mic/stereo return use, or for line inputs (see easy playing of pre-show music at a single button Matrix Assignment inputs). Auxiliary Masters press, without having to make any alterations to One rotary control per Group allows individual The level at each Auxiliary output (XLRs 1-4, the band’s settings. assignment to Matrices 1-2. CONTROL ROOM SECTION balanced jacks 5-6) on the rear panel is controlled by a rotary control with a button for AFL. Metering Matrix Masters The control room section allows the engineer to 12-segment Peak reading bargraph meters can be The level at each Matrix output (XLR) on the rear monitor either the 2-track return, Groups 1&2 and Routing selected to display 2-track return, Mix or Sub panel is controlled by a rotary control, with buttons 3&4, or the Mix via the control room outputs or The signal on the sub group fader can be routed to Group (12/2 model only) when the appropriate for AFL and Mute. headphones. A headphone jack is provided for use the L-R mix, and/or mono-summed. control room selection is made. If any input or Auxiliary Masters with headphones with impedances of 100 Ohms Auxiliary master is soloed then the PFL/AFL LED or greater. Both the control room and 2-track 100mm Group Faders illuminates, and the master meters show PFL/AFL The level at each Auxiliary output (XLRs 1-4, The Group faders provide 10dB of extra gain above return levels can be altered using the associated levels instead. balanced jacks 5-6) on the rear panel is controlled the zero mark, whilst still ensuring smooth by a rotary control with a button for AFL. controls. It is also possible to switch the 2-track return input to Mix, adding to whatever signal is operation. 100mm Master Faders Routing already present on the mix output, by pressing Output levels are controlled by dual 100mm long The signal on each Group fader can be routed to “2 TRK TO MIX”. This allows easy playing of MASTER SECTION throw mix faders. the L-R mix. pre-show music at a single button press, Connections without having to make any alterations to the L-R Mix and a mono sum output appear on Integral Power Supply Stereo Width band’ssettings. balanced XLR with jack insert points on the L-R The console is fitted with a high-efficiency SMPS The channel pan settings are retained on the group outputs. Two control room outputs for engineer design (Switched Mode Power Supply) unit that outputs, while the degree of stereo separation to Metering makes for cooler operation and lighter weight. The 12-segment Peak reading bargraph meters can be monitoring are available on impedance balanced the mix bus is independently adjustable on rotary 1/4" jacks. PSU is capable of accepting a wide range of AC controls from full stereo through to mono. selected to display 2-track return, Groups 1&2 and input voltages without any internal or external 3&4, or the Mix when the appropriate control 2TRK Inputs switch changes. 100mm Group Faders room selection is made. If any input or Auxiliary A pair of unbalanced -10dBv phono connectors The Group faders provide 10dB of extra gain above master is soloed then the PFL/AFL LED illuminates, labelled “2TRK In” allow pre-show music to be the zero mark, whilst still ensuring smooth and the master meters show PFL/AFL levels instead. replayed. An independent 2 TRK rotary level control operation. is also provided. 100mm Master Faders Output levels are controlled by a 100mm long MASTER SECTION Auxiliary Masters throw mix fader. The Mix outputs may be routed to The level at each Auxiliary output (XLRs 1-4, Connections the C (Mono) bus should only a mono PA be balanced jacks 5-6) on the rear panel is controlled L-R Mix and a mono sum output appear on required, or an induction loop need to be fed. by a rotary control with a button for AFL. balanced XLR with jack insert points on the L-R outputs. A balanced XLR input allows a talkback Integral Power Supply The console is fitted with a high-efficiency SMPS Rec Output mic to be connected. Two control room outputs for Recording outputs are provided on -10dBv phono engineer monitoring are available on impedance design (Switched Mode Power Supply) unit that makes for cooler operation and lighter weight. The connectors. They provide a post-fade send from the balanced 1/4" jacks. L and R signals may be fed L-R mix. to each of the 2 matrix busses. PSU is capable of accepting a wide range of AC input voltages without any internal or external 2TRK Inputs switch changes. An external DPS-3 power supply Stereo Returns A pair of unbalanced -10dBv phono connectors may be connected for redundancy operation. Two stereo returns are available with Level controls labelled “2TRK In” allow pre-show music to be to Mix, Aux 1 and Aux 2, and on the 12/2 model to replayed. An independent 2 TRK rotary level control sub group. is also provided.
GB2 Outputs & Master GB2R 12/2 Outputs & Master GB2R 16 Outputs & Master GB4 SYSTEM BLOCK DIAGRAM GB8 SYSTEM BLOCK DIAGRAM GB2/GB2R SYSTEM BLOCK DIAGRAMS TOP PANEL, CONNECTORS, DIMS & WEIGHTS SOLO EN GRP 1 - 4 AUX 1 - 6 MIX L - R
PFL/AFL GB8/GB4/GB2 GB2R
+48 (GB2) OVERHEAD VIEW OVERHEAD VIEW AUX PRE MODE MUTE POST/PRE EQ +6 AUX1
GAIN SUB L-R NB: GB2R 16 shown. MIC 5-60dB EQ DEFAULT +6 NB: GB8 32 channel +10dB AUX2 3 - 4 (GB2R 12-2) model shown. GB4 and PRE MIC+ +6 GB2 Channel and 100Hz AUX3 MIC- FADER Outputs & Master section +6 LINE SIGNAL L F L MID H MID HF AUX4 differences are PRESENT LINE+ -20dB highlighted in the LINE- +6 INS AUX5 preceding pages. INS SEND PEAK
INS RETN +6 PFL DEFAULT AUX6 AUX 5 - 6 MODE: POST OR FOLLOW PRE AUX 3 - 4 DIRECT GB2 1-2 REAR PANEL CONNECTIONS REAR PANEL CONNECTIONS PAN GB2R12-2 SUB (ON REAR CON) R IDENTICAL FOR GROUPS 3 - 4(GB2) NB: GB8 32 channel NB: GB2R 12/2 L shown. MONO INPUT MIX model shown. STEREO INPUT (NOT GB2R 16) +48
+6 AUX1 MIC L MIC GAIN 5-60dB EQ MUTE FADER +6 LINE TO MIX/ BAL +10dB LINE TO CHAN AUX2 3 - 4 MIC+ PRE +17 +6 MIC- -17 AUX3
LINE L LINE L F L MID H MID HF +6 -7 SIGNAL LINE+ AUX4 PRESENT LINE- PFL PEAK +6 DIMENSIONS & WEIGHTS AUX5
+6 L MONO R DEFAULT AUX6 AUX 5 - 6 MODE: MIC R POST OR FOLLOW AUX 3 - 4 GB8 +10dB GB2 1-2 GB2R12-2 SUB
MIC+ IDENTICAL FOR Frame Size Width Weight +17 GROUPS 3 - 4(GB2) MIC- -17
LINE R 16 Ch 984mm (38.74") 25kg (55.1lbs) L F L MID H MID HF MIX -7 LINE+ 24 Ch 1208mm (47.56") 30kg (66.1lbs) LINE- 32 Ch 1442mm (56.77") 35kg (77.2lbs) 40 Ch 1666mm (65.59") 40kg (88.2lbs) 48 Ch 1889mm (74.37") 45kg (99.2lbs) MIX OUT L - R SUB OUT L-R
SUB L-R GB4 SOLO EN AUX 1 - 6 MIX L - R PFL/AFL
GRP 1 - 4 AUX 2, 4, 6 AS BELOW Frame Size Width Weight GRP OUT 1-4 AUX 1 +16dB AUX 3 +16dB AUX 5 +16dB
INV INV INV 12 Ch 730mm (28.73") 20kg (44.1lbs)
AUX 5 235mm (9.23")* AUX 1 AUX 3 OUT 16 Ch 842mm (33.13") 22kg (48.5lbs) OUT OUT
AFL AFL AFL 24 Ch 1065mm (41.93") 27kg (59.5lbs) LINKS FITTED 159mm (6.26") SWITCH FITTED ON GB2R 16
LEVEL 32 Ch 1300mm (51.17") 32kg (70.5lbs) 10mm (0.39") ON GB2R 12-2 MIX STE RET 1 L 40 Ch 1523mm (59.96") 37kg (81.6lbs) SUB
TO AUX 1 FOR STEREO RET 1 TO AUX 2 FOR STEREO RET 2 AUX 1 PRE GB2 656mm (25.83") STE RET 1 R Frame Size Width Weight SUBL +10dB
INV STEREO RTN 2 SUBL AS ABOVE 16 Ch 790mm (31.10") 22kg (48.5lbs) INSERT SUB L MIX MONO OUT 24 Ch 1013mm (39.88") 25kg (55.1lbs) 32 Ch 1247mm (49.09") 30kg (66.1lbs) *NB The Meterpod is only available on the GB8 GRP1 +6
SUBR +10dB GRP2 +6
AFL INV MATRIX MUTE +16dB SUBR GRP3 +6 INSERT SUB R OUT INV
GRP4 +6 Rear connector panel rotated GRP1 +10dB GB2R for rack mounting INV MIXL +6 GRP1 INSERT GRP1 MATRIX 1 Width Weight MIX OUT OUT
MIXR +6 MATRIX 2 AS ABOVE PFL WIDTH GB2R 12/2 483mm (19") 12.5kg (27lbs) with rack ears
GRP2 +10dB TB GAIN
AUX 1-4 GRPS TB MIC INV 440mm (17.32") GRP2 +18dB 445mm (17.52") INSERT GRP2 2 TK L REC L OUT 300mV without rack ears MIX
PFL 2TK LEVEL GB2R 16 483mm (19") 12.5kg (27lbs) GROUPS 3, 4 +18dB AS ABOVE 2 TK R REC R 300mV with rack ears
+6dB MNTR L 440mm (17.32) C/RM LVL LR +6dB MNTR R +18 +18 without rack ears
+10dB
MIX L 2TRK 1-2 190mm (7.48") INV +20dB OUT -20 -20 MIX H/PHONES PEAK PEAK MIX L FDR READING READING PHNS RECTIFIER RECTIFIER INSERT +20dB LVL +10dB 3-4 MONO INV OUT MIX R OUT MNO
MIX R MIX INSERT PFL/AFL 80mm (3.15") 57mm (2.24") SOLO ENABLE INV SUB