Owners Manual MCC204 Power Amplifier MCC204 McIntosh Laboratory, Inc.
WARNING - TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. To prevent the risk of electric shock, do not remove bottom cover. No user serviceable parts inside. IMPORTANT SAFETY INSTRUCTIONS! PLEASE READ THEM BEFORE OPERATING THIS EQUIPMENT. General: 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5.
Thank You Table of Contents Your decision to own this McIntosh MCC204 Four Channel Power Amplifier ranks you at the very top among discriminating music listeners. You now have The Best. The McIntosh dedication to Quality, is assurance that you will receive many years of musical enjoyment from this unit. Please take a short time to read the information in this manual. We want you to be as familiar as possible with all the features and functions of your new McIntosh. Safety Instructions ...............
Introduction Now you can take advantage of traditional McIntosh standards of excellence in the MCC204 Power Amplifier. Four 50 watt high current output channels will drive any high quality loudspeaker system to its ultimate performance. The MCC204 reproduction is sonically transparent and absolutely accurate. The McIntosh Sound is The Sound of the Music Itself.
Dimensions Dimensions The following dimensions can assist in determining the best location for your MCC204. There is additional information on the next page pertaining to installing the MCC204 into your vehicle. Top View of the MCC204 13-21/32" 34.69cm 11.00" 27.94cm 2-11/16" 6.82cm 12-1/2" 31.75cm 11-7/8" 30.16cm Side View of the MCC204 11" 27.93cm 11/32" 10.93cm 2-15/16" 7.
Installation Installation It is recommended that a professional who is skilled in all aspects of installation and operation install the MCC204 and any associated mobile audio equipment. Amplifier Ventilation Always provide adequate ventilation for the MCC204. The amplifier requires an adequate airflow into the cooling fan, which is located on the left side of the amplifier. The warm air exits the amplifier through vents on the heatsinks. See figure 1.
Side Panel Cooling and Connections Connect to the Negative (-) vehicle battery terminal Connect to the positve (+) vehicle battery terminal with an inline fuse Cooling Fan Air Intake SUBWOOFER OUTPUTS supply a four channel summed output OUTPUT Connections for loudspeakers OUTPUTs from the INPUT Signal Source to connect to another Power Amplifier INPUTs for audio cables from a signal source Connector for optional SUBwoofer REMOTE Volume CONTROL Receives the Amplifier Turn-ON signal from a McIntosh Co
How to Connect for Four Channels How to Connect for Four Channels 1. Connect a wire from the Control Center Amp On to the MCC204 ON Connector on the right side of the amplifier. Note: All cables should be connected to the amplifier before connecting the DC power cables to the battery. 2. Connect a wire from a McIntosh Control Center with Power Guard to the MCC204 PG Connector on the right side of the amplifier. 3.
How to Connect for Three Channels How to Connect for Three Channels 1. Connect a wire from the Control Center Amp On to the MCC204 ON connector on the right side of the amplifier. Note: All cables should be connected to the amplifier before connecting the DC power cables to the battery. 2. Connect a wire from a McIntosh Control Center with Power Guard to the MCC204 PG connector on the right side of the amplifier. 3.
How to Connect for Two Channels How to Connect for Two Channels 1. Connect a wire from the Control Center Amp On to the MCC204 ON Connector on the right side of the amplifier. Note: The Subwoofer Output Signal is at line-level, summed from all the Input Channels and is available regardless of the MCC204 Operating Mode used. The Subwoofer Output Level can be remotely controlled by the optional McIntosh External Subwoofer Rotary Control connected to the SUB REMOTE CONTROL jack on the MCC204.
How to Connect with Subwoofer Channel How to Connect with Subwoofer Channel 1. Connect a wire from the Control Center Amp On to the MCC204 ON Connector on the right side of the amplifier. Note: The Subwoofer Output Signal is at line-level, summed from all the Input Channels and is available regardless of the MCC204 Operating Mode used. The Subwoofer Output Level can be remotely controlled by the optional McIntosh External Subwoofer Rotary Control connected to the SUB REMOTE CONTROL jack on the MCC204.
Top Panel Controls, Display and Switches CROSSOVER Filter Switch and Control select the low roll-off frequency, high roll-off frequency or flat frequency response POWER GUARD LED lights when the Power Guard Circuit activates for Amplifier Channels 1 or 2 CH 3-4 EQUALIZER Controls select the Frequency and the Level of Boost or Cut at the Center Frequencies CH 3-4 MODE Switch selects STEREO or BRIDGE mode of operation CH 1-2 MODE Switch selects STEREO or BRIDGE mode of operation CROSSOVER Filter Switch a
How to Operate Introduction The McIntosh MCC204 is a highly versatile amplifier that can be configured in many ways. This manual gives examples of some of the most common configurations. The best way to set equalization and filter controls is through the use of a real-time spectrum analyzer and the expertise of a professional installer. This manual will guide you through the basic operation, however we suggest you refer to your dealer for further information on the use of this unit.
How to Operate in Four or Three Channel Mode How to Operate Four Channel Mode How to Operate Three Channel Mode In the Four Channel Mode, all channels operate as independent 50 watt amplifiers. A typical four channel application is to drive a pair of full range loudspeakers in the front section of a vehicle and a second pair in the rear. Refer to figures 7 and 8.
How to Operate in Two Channel or Subwoofer Mode How to Operate in Two Channel Mode How to Operate in Subwoofer Mode In the Two Channel Mode, Channels 1 and 2, and Channels 3 and 4 operate in bridged configuration as a pair of full frequency range 200 watt amplifiers. A typical application is use of a more powerful amplifier for stereo reproduction. Refer to figures 7 and 8.
How to Replace the Fuses How to Replace the Fuses If the MCC204 produces no sound, there is no Illumination of the Nomenclature on the Top Glass Panel, and the power connections seem secure, one or more of the Amplifiers Fuse(s) may have failed. Under normal operating conditions your amplifiers fuses should not fail. Failure of a fuse is usually an indication of a problem. Replacing the fuse, if there is a problem in the amplifier, may incur a risk of further damage. Refer to figures 9, 10 and 11.
MCC204 Block Diagram Block Diagram 17
Specifications Specifications Power Output Per Channel 50 watts into 4 ohm loads and 100 watts into 2 ohm loads is the minimum sine wave continuous average power output per channel all four channels operating. Power Output Bridged 200 watts into 4 ohm loads is the minimum sine wave continuous average power output. Rated Power Band 20Hz to 20,000Hz Total Harmonic Distortion Maximum Total Harmonic Distortion at any power level from 250 milliwatts to rated power output is: 0.005% for 4 ohm loads 0.
Packing Instructions Packing Instructions In the event it is necessary to repack the equipment for shipment, the equipment must be packed exactly as shown below, failure to do so will result in shipping damage. Make sure that the Top Glass Panel is firmly secured to the chassis using the supplied hex head screws. Use the original shipping carton and interior parts only if they are all in good serviceable condition.
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, NY 13903 McIntosh Part No.
