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Home > Preamplifiers > C45
McIntosh C45   Product Brochure [pdf]
Stereo Preamp w 6 CH passthru Original List Price: 4500.00 EA

Grade: B1 B1: 2899.00 EA
Physical: Some light scratches - Excellent Condition
Electrical: Meets or exceeds original specs, all functions operate
Comments:with box, manual & remote. Certified by ACL, DEP.

C45 Preamp Audio Control Center - Pre-owned - Mint Condition
McIntosh C45

McIntosh C45 Back

Performance Features

  • Balanced Inputs and Outputs
    One pair of balanced high level inputs and balanced outputs for all six outputs.
  • Precision Tracking Variable Rate Volume Control
    Volume levels are controlled by a new multi-stage precision digitally controlled attenuator system with a tracking accuracy of 0.1dB. Levels change in 214 individual 0.5dB steps. The variable rate volume control circuitry provides an ideal rate of change with control rotation.
  • Tone Control with Assignable Bypass
    The bass and treble control circuit elements can be removed from the signal path of any selected input.
  • Alphanumeric Fluorescent Display
    The multi-function front panel display indicates the source selection and volume levels. The setup mode selections and adjustments are also displayed. The display intensity is fully adjustable.
  • Electromagnetic Input Switching with Level Trim Adjustment and Title Reassignment
    Digital logic integrated circuits drive electromagnetic switches on all inputs and operating functions for reliable, noiseless, distortion free switching. All eight inputs on the C45 can be matched in level, so that there are no abrupt changes in volume levels between the different inputs. Any of the eight inputs can have their input title reassigned to match the sources in the system.
  • Power Control Output and Trigger Assignment
    A power control connection for convenient turn-on of McIntosh power amplifiers, source components and accessories included. Two of the power control outputs may be assigned to activate when a given input is selected.
  • Multichannel Inputs
    There are two six channel inputs that are assignable for sources such as DVD-Audio player, audio CD player, super audio CD player and satellite receivers.
  • Moving Magnet Phono Input
    There is a precision phono preamplifier for moving magnet cartridges.
  • Remote ControlThe C45 includes a remote control that allows remote operation of the front panel controls and push buttons.
  • Optional External keypad Sensor Input
    There are provisions for connecting an external keypad and sensors which allow for enjoyment of your McIntosh system from other rooms in your home.
  • Fiber Optic Solid State Front Panel Illumination
    The illumination of the front panel is accomplished by the combination of custom designed fiber optic diffusers and light emitting diodes. This provides even front panel illumination, together with extra long life LED technology.
  • Glass Front Panel
    The famous McIntosh illuminated glass front panel ensures the pristine beauty of your C45 will be retained for many years.


  • Frequency Response
    +0, -0.5dB from 20Hz to 20,000Hz
  • Total Harmonic Distortion
    0.002% maximum from 20Hz to 20,000Hz at rated output
  • Signal to Noise Ratio
    Phono: 86dB below 10mV input (A Weighted)
    High Level: 96dB below rated output (A Weighted)
  • Rated Output Voltage
    2.5V Unbalanced outputs (Main)
    5.0V Balanced outputs (Main)
  • Maximum Output Voltage
    8V Unbalanced
    16V Balanced
  • Output Impedance
    250 ohms unbalanced
    500 ohms balanced
  • Input Impedance
    Phono: 47k ohms, 65pf
    High Level: 22k ohms unbal, 50k ohms bal
  • Sensitivity for Rated Output
    Phono: 4.5mV
    High Level: 450mV unbal, 900mV bal
  • Maximum Input Signal
    Phono: 50mV
    High Level: 5V unbal, 10V bal
  • Voltage Gain
    Phono to Tape Out: 40dB
    Phone to Output (Main): 55dB
    High Level to Tape Out: 0dB
    High Level to Output (Main): 15dB
  • Tone Controls
    Bass Control: ±12db at 30Hz
    Treble Control: ±12db at 10,000Hz
Stereo & 6 channel, Balanced Inputs and Outputs, MM Phono Input
Remote Control. Accepts TM-1 tuner Module.
Stereophile Recommended Components Class A, April 06
8 Data Ports. IR & Keypad Inputs.
Dual Record Outputs. Optional TM-1 Tuner Module.
Shipping weight: 40 lbs.

Related Categories:   Interconnects    Line Conditioners

Feedback: The C45 arrived today and in excellent condition. Your packaging is first rate. Thank you very much for great service. I know why your business receives nothing but praise. D.S., CA.
I received the McIntosh C45 today and it was exactly as described. I am very happy with my purchase and the service that you and Audio Classics have provided. Thank you very much! R.W., CA
Thanks for the fantastic service and customer support that you have provided during the past few weeks. Your detailed knowledge and practical advice on multiple audio brands and equipment is priceless. I appreciate your enthusiasm and professionalism in helping me to select the Mcintosh MC402 and C45 w/TM1. M.S.,TX
Just to let you know, the C45 arrived in good condition .... It's been a long time since I bought a piece of McIntosh equipment, and I was happy to see the beautiful construction and marvelous sound quality are still as great as ever. Thanks for handling this for me at Audio Classics. It was a very fair price for a wonderful unit. R.P., Canada

Convenient payment plans: Audio Classics, Ltd. accepts Mastercard, VISA, Discover and American Express. For Your protection, we thoroughly investigate the validity of all credit card charges. To avoid delays, we prefer to send credit card orders to Your billing address only. You can pay by personal check, postal money order, certified check or bank cashier's check. Personal checks are subject to credit verification and can delay orders up to two weeks. COD orders must be paid by cash, bank check or money order and require a 10% deposit. The deposit can be paid by check or credit card.
Expert Packing: Your purchase is packed in the original shipping container whenever possible. Double boxing is used for extra protection on most items and Your shipment is insured. Large or heavy items can be crated at an additional charge. Audio Classics, Ltd. ships by your choice of UPS, FEDEX, US Mail, BAX, Roadway or Consolidated and you pay the shipping and handling charges.

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