McIntosh C50 Owner's Manual
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McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com
C50
Audio Preamplifier
Owner's Manual

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Summary of Contents for McIntosh C50

  • Page 1 McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com Audio Preamplifier Owner’s Manual...
  • Page 2: Safety Instructions

    The lightning flash with arrowhead, within an equilateral The exclamation point within an equilateral triangle is triangle, is intended to alert the user to the presence of intended to alert the user to the presence of important uninsulated “dangerous voltage” within the product’s en- operating and maintenance (servicing) instructions in the closure that may be of sufficient magnitude to constitute literature accompanying the appliance.
  • Page 3: Table Of Contents

    Thank You Customer Service Front Panel: Your decision to own this McIntosh C50 Audio Pre- If it is determined that your McIntosh product is in 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 and Jack ..............
  • Page 4: General Information

    McIntosh Products please visit the McIntosh Web to the C50 Audio Preamplifier. Site at www.mcintoshlabs.com. to Source Components. A 1/8 2. The Main AC Power going to the C50 and any inch stereo mini phone plug is Data Connector and Cable Information...
  • Page 5: Introduction

    All rotation. may be assigned to activate when a given Input is eight Inputs on the C50 can be matched in level, so • Equalizer Controls with Bypass selected. there are no abrupt changes in volume levels between The Equalizer Circuitry provides 12dB of boost or cut the different Inputs.
  • Page 6: Dimensions

    Dimensions Dimensions The following dimensions can assist in determining the best location for your C50. There is additional information on the next page pertaining to installing the C50 into cabinets. Front View of the C50 " 44.45cm " " Side View of the C50 19.37cm...
  • Page 7: Installation

    Installation Installation " 3/16 The C50 can be placed upright on a table or shelf, 43.66cm standing on its four feet. It also can be custom in- stalled in a piece of furniture or cabinet of your choice. The four feet may be removed from the bottom...
  • Page 8: Connections

    Rear Panel Connections Rear Panel Connections The identification of Rear Panel Connections for the C50 Audio Preamplifier is located on a separate folded sheet contained in the Owner’s Manual Packet. Refer to separate sheet “Mc2B” for the Rear Panel Connections.
  • Page 9: Connecting Components

    Remote Control. With an external sensor connected POWER CONTROL OUTPUT 2 Jack to the Balanced (Left and Right) Inputs. to the C50, remote control operation of the system is Power Amplifier (Secondary Room) Power Control 19. Optionally Connect an Audio Cable from the C50 possible from another room and/or when the C50 is In Jack.
  • Page 10: Remote Control Push-Buttons

    Output 1 Scrolls through the or 2 available C50 Inputs Scrolls through the Selects one of the eight available C50 Inputs available Audio Sources Note: Push-buttons whose function is not identified above are for use with other McIntosh Products.
  • Page 11: How To Use The Remote Control

    Note: When the C50 is Off, pressing one of the Source Note: The Record Signals present at REC OUTPUTS are Push-buttons will switch the C50 On and it will go not affected by volume changes.
  • Page 12: Front Panel Displays, Controls, Push-Buttons And Jack

    2,500Hz and 10,000Hz Connection for low STANDBY/ON impedance dynamic Push-button with headphones, for indicator, switches private listening the C50 ON or OFF (Standby) and resets the microprocessors PROCESSOR Push- EQualizer BYPASS TRIM Push-button INFORMATION DISPLAY MUTE Push-button OUTPUT 1 and 2...
  • Page 13: Setup

    Firmware. The Version of the enjoyment of superb audio without the need for fur- Firmware in the C50 can be identified at any time by SETUP: SOURCE INPUT ther adjustments. If you wish to make changes to the utilizing the Setup Mode.
  • Page 14: Input Level Adjustment

    Setup Mode is active. Then press “SRVR : DIGITAL 1” appears on the Front Panel levels resulting in the need to readjust the C50 Volume the OUTPUT 2 / MENU ► Push-button to select Information Display. Refer to figure 8. Record Control when switching between different sources.
  • Page 15: Display Brightness

    Display Brightness Passthru 3. Rotate the INPUT Control until “LEVEL: SRVR The C50 can be part of a Multichannel Sound System The Front Panel Information Display Brightness may 0.0dB” appears on the Front Panel Information for SACD, DVD-Audio and Home Theater. The Right be changed from the default setting.
  • Page 16: Power Control Triggers 1 And 2

    2 Outputs function the same as the MAIN Power “SETUP: PASSTHRU, Source: BALANCED 2” tion: SOURCE” appears. Refer to figure 17. Control Jack, switching On/Off with the C50. Trigger appears on the Front Panel Alphanumeric Display. SETUP: TRIG1 OUTPUT 1 and 2 are also reassignable to activate when the ACC Refer to figure 14.
  • Page 17: Comm Port Baud Rate

    NORMal McIntosh Control Codes. The Second Set of seconds. ment connected to the Rear Panel RS232C connector. Control Codes the C50 will respond to is referred to as D. The “Mc” Push-button flashes twice. The speed at which the C50 communicates (8 bit, no Note: To reset the Remote Control to normal the ALTernate Codes.
  • Page 18: How To Operate The C50

    VOLUME Upp or Downq Push-buttons on the Re- room acoustics and listening figures 50, 51, 52 and 53. To switch OFF the C50 press mote Control for the desired listening level. Refer to the STANDBY/ON Push-button on the Front Panel or positions relative to the Loud- figures 50 and 53.
  • Page 19 EXTERNAL PROCESSOR TRIM LEVEL: -2.5dB LEVEL + / - Push-buttons on the Remote Control The C50 Preamplifier has a Processor Loop for con- ¦ ¦ ¦ ¦ to emphasize the Right Channel (refer to figure 55) necting an external sound processor. The Processor or the Left Channel (refer to figure 56).
  • Page 20 1. Select one of the Inputs assigned to an active digital source. Note: The USB-D/A Input may also be selected when the C50 is connected to a computer. 2. Press the TRIM Push-button repeatedly until “DIGITAL AUDIO, Display Info: Off” appears on the Front Panel Information Display.
  • Page 21: Processor Loop

    TROL OUTPUT 1 / OUTPUT 2 Jacks on the rear Press the Front Panel TRIM Push-button to activate figure 69. panel of the C50. To stop the Audio and Power Control the C50 Trim Functions. Use the Front Panel OUT- Signals from going to the separate Power Amplifiers, SOURCE: DVD PUT 1/ OUTPUT 2 / ◄...
  • Page 22: Equalizer Controls

    Equalizer Controls of the C50 at the +6dB and -6dB points. HARP GUITAR Passthru VIOLIN When the C50 is connected together with a McIntosh STRINGS VIOLA CELLO Multichannel A/V Control Center or Surround Decod- BASS...
  • Page 23: Optical And Digital Inputs

    STANDBY/ON Push-button is connected to the rear panel USB D/A connector. The Note: This can be performed with the C50 On or in the C50 USB Input is compatible with both PC Computers Standby Mode.
  • Page 25: Photos

    Photos...
  • Page 26: Specifications

    Maximum Voltage Output Phono MC, 5mV Standby Power, less than 0.5 watts 8V RMS Unbalanced, 16V RMS Balanced Note: Refer to the rear panel of the C50 for the correct voltage. Voltage Gain Sensitivity (for rated output) High Level to Record Output: 0dB...
  • Page 27: Packing Instruction

    Customer Service Depart- 404080 #10-7/16” Flat washer ment of McIntosh Laboratory. Refer to page 3. Please see the Part List for the correct part numbers.
  • Page 28 McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, NY 13903 www.mcintoshlabs.com The continuous improvement of its products is the policy of McIntosh Laboratory Incorporated who reserve the right to improve design without notice. Printed in the U.S.A. McIntosh Part No. 04122700...

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