McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com C47 Audio Preamplifier Owner’s Manual The lightning flash with arrowhead, within an equilateral triangle, The exclamation point within an equilateral triangle is intended to is intended to alert the user to the presence of uninsulated “dan- alert the user to the presence of important operating and mainte- gerous voltage” within the product’s enclosure that may be of suf- nance (servicing) instructions in the literature accompanying the ficient magnitude to constitute a risk of electric shock to persons. appliance. WARNING - TO REDUCE RISK OF ATTENTION: FIRE OR ELECTRICAL SHOCK, DO RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR To prevent the risk of electric shock, NOT EXPOSE THIS EQUIPMENT TO NO USER-SERVICEABLE PARTS INSIDE. RE- do not remove cover or back. No RAIN OR MOISTURE. FER SERVICING TO QUALIFIED PERSONNEL. user-serviceable parts inside. IMPORTANT SAFETY INSTRUCTIONS! caution when moving the cart/apparatus combination to 17. If this equipment is supplied with AC /DC Adapter with PLEASE READ THEM BEFORE avoid injury from tip-over. separate power supply cord or the AC/DC Adapter plugging directly into an a.c. receptacle, they shall OPERATING THIS EQUIPMENT. 13. Unplug this apparatus during lightning storms or when unused for long periods of time. remain readily operable. To completely disconnect this 1. Read these instructions. 14. Refer all servicing to qualified service personnel. Ser- equipment from the a.c. mains remove the AC /DC 2. Keep these instructions. vicing is required when the apparatus has been dam- Adapter mains power supply cord from the a.c. recep- 3. Heed all warnings. aged in any way, such as power-supply cord or plug is tacle or remove the AC /DC Adapter when it is directly 4. Follow all instructions. damaged, liquid has been spilled or objects have fallen plugged into the a.c. receptacle. 5. Do not use this apparatus near water. into the apparatus, the apparatus has been exposed to Si l’équipement est alimenté par un adaptateur AC/DC 6. Clean only with a dry cloth. rain or moisture, does not operate normally, or has been munis d’un cordon d’alimentation ou un adaptateur 7. Do not block any ventilation openings. Install in accor- dropped. AC/DC qui est alimenté directement à la prise mu- dance with the manufacturer’s instructions. 15. Do not expose this equipment to dripping or splashing rale, ils doivent demeurer aisément accessibles. Pour 8. Do not install near any heat sources such as radiators, and ensure that no objects filled with liquids, such as déconnecter complètement l’équipement du réseau heat registers, stoves, or other apparatus (including vases, are placed on the equipment. d’alimentation, déconnecter l’adaptateur AC/DC de la amplifiers) that produce heat. Ne pas exposer cet appareil à des éclaboussures ou prise murale ou déconnecter le cordon d’alimentation 9. Do not defeat the safety purpose of the polarized or gouttelettes d’un liquide. Aucun objet remplie de de l’adaptateur AC/DC de la prise murale. grounding-type plug. A polarized plug has two blades liquide comme par exemple un vase ne doit être placé 18. WARNING: Do not expose batteries or battery pack to with one wider than the other. A grounding type plug sur l’appareil. excessive heat such as sunshine, fire or the like. has two blades and a third grounding prong. The wide 16. If this equipment is supplied with a power supply cord AVERTISSEMENT: Les batteries ou bloc de batteries blade or the third prong are provided for your safety. If only, the mains plug of the power supply cord shall ne doivent pas etre exposees a une chaleur excessive the provided plug does not fit into your outlet, consult remain readily operable. To completely disconnect this telle que celle du soleil, feu ou autre source de chaleur an electrician for replacement of the obsolete outlet. equipment from the a.c. mains remove the plug from similaire. 10. Protect the power cord from being walked on or pinched the a.c. receptacle. 19. CAUTION: danger of explosion if battery is incorrectly particularly at plugs, convenience receptacles, and the Si l’équipement est uniquement alimenté par un cordon replaced. Replace only with the same or equivalent point where they exit from the apparatus. d’alimentation, la fiche du cordon d’alimentation doit type. 11. Only use attachments/accessories specified by the manu- demeurer aisément accessible. Pour déconnecter ATTENTION: danger d’explosion si la pile n’est pas facturer. complètement l’équipement du réseau d’alimentation, remplacée correctement. Ne remplacer que par le même 12. Use only with the cart, stand, tripod, bracket, déconnecter la fiche du cordon d’alimentation de la type ou un type équivalent. or table specified by the manufacturer, or sold prise murale. 20. Connect mains power supply cord only to a mains with the apparatus. When a cart is used, use socket outlet with a protective earthing connection. 2 Thank You Customer Service Your decision to own this McIntosh C47 Audio Pre- If it is determined that your McIntosh product is in Front Panel: amplifier ranks you at the very top among discrimi- need of repair, you can return it to your Dealer. You Front Panel Displays, Controls, Push-buttons nating music listeners. You now have “The Best.” The can also return it to the McIntosh Laboratory Service and Jack ..................................................................... 12 McIntosh dedication to “Quality,” is assurance that Department. For assistance on factory repair return you will receive many years of musical enjoyment procedure, contact the McIntosh Service Department Setup: from this unit. at: How to Operate the Setup Mode .............................. 13 Please take a short time to read the information in Default Settings......................................................... 13 this manual. We want you to be as familiar as pos- McIntosh Laboratory, Inc. Firmware Version ...................................................... 13 sible with all the features and functions of your new 2 Chambers Street Input Settings ............................................................ 13 McIntosh. Binghamton, New York 13903 Rename Input ............................................................ 14 Phone: 607-723-3515 Output Settings ......................................................... 15 Please Take A Moment Fax: 607-723-1917 Power Control Triggers 1 and 2 ................................ 16 The serial number, purchase date and McIntosh Dealer Data Ports .................................................................. 16 name are important to you for possible insurance Table of Contents Passthru ..................................................................... 17 claim or future service. The spaces below have been Safety Instructions ..................................................... 2 Comm Port Baud Rate .............................................. 16 provided for you to record that information: Thank You and Please Take a Moment ...................... 3 Remote Control Codes .............................................. 17 Technical Assistance and Customer Service ............. 3 IR Sensor, Power Mode and Factory Reset .............. 18 Serial Number: _______________________________ Table of Contents ....................................................... 3 Purchase Date: _______________________________ General Information .................................................. 4 Operation: Connector and Cable Information ............................. 4 How to Operate the C47 ...........................................20 Dealer Name: ________________________________ Introduction ................................................................ 5 Trim Functions .....................................................20-22 Performance Features ................................................ 5 Mute .......................................................................... 23 Technical Assistance Dimensions ................................................................ 6 Outputs 1&2, Trim, Output Meters and Passthru ..... 23 Installation ................................................................. 7 Headphone Jack and How to make a Recording ....... 24 If at any time you have questions about your McIntosh Optical and Digital Inputs ......................................... 25 product, contact your McIntosh Dealer who is familiar Connections: USB Input and Installing Software ......................25-26 with your McIntosh equipment and any other brands Rear Panel Connections, Connecting Components .8-9 USB Music Playback................................................. 25 that may be part of your system. If you or your Dealer Rear Panel Connections (Separate Sheet) ........... Mc2B Reset of Microprocessors .......................................... 24 wish additional help concerning a suspected problem, Connecting Components (Separate Sheets) .......Mc1A, you can receive technical assistance for all McIntosh .................................................................Mc1B, Mc2A Additional Information: products at: Input Assignment Chart (Separate Sheet) ..........Mc5A, Photos ...................................................................24-25 .............................................................................Mc5B Specifications ............................................................ 26 McIntosh Laboratory, Inc. Packing Instruction ..................................................