Owners Manual MCC404/MCC404M Power Amplifier MCC404 MCC404M 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.
McIntosh MCC404 Amplifier Thank You The McIntosh MCC404 Power Amplifier is identical to the McIntosh MCC404M illustrated throughout this manual in every aspect except the MCC404 is without the Power Output Meters. Your decision to own this McIntosh MCC404/MCC404M 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.
Table of Contents Introduction Safety Instructions ............................................................. 2 Thank You .......................................................................... 3 Please Take a Moment ....................................................... 3 Customer Service ............................................................... 3 Table of Contents ............................................................... 4 Introduction .................................................
Dimensions Dimensions The following dimensions can assist in determining the best location for your MCC404/MCC404M. There is additional information on the next page pertaining to installing the MCC404/MCC404M into your vehicle. Top View of the MCC404/MCC404M 18-3/8" 46.66cm 15-3/16" 38.57cm 9-3/16" 3-3/16" 23.33cm 8.09cm 12-1/4" 31.12cm 11-13/16" 29.97cm Side View of the MCC404/MCC404M 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 MCC404/ MCC404M and any associated mobile audio equipment. Amplifier Ventilation Always provide adequate ventilation for the MCC404/ MCC404M. The amplifier requires an adequate airflow into the cooling fans, which are 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 Cooling Fan Air Intake SUBWOOFER OUTPUTS supplies a four channel summed output OUTPUT Connections for 2, 4 or 8 ohm loudspeakers OUTPUTs from the INPUT Signal Source to connect to the another Power Amplifier INPUTs for audio cables from a signal source Connector for optional Subwoofer Remote Volume Control Receives the
How to Connect for Four Channels How to Connect for Four Channels 1. Connect the cable from the Control Center Amp On to the MCC404/MCC404M 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 cable from a McIntosh Control Center with Power Guard to the MCC404/MCC404M PG Connector on the right side of the amplifier. 3.
How to Connect for Three Channels How to Connect for Three Channels 6. Connect an audio cable from one of the control center outputs to the input of an external crossover. 7. Connect an audio cable from the external crossover TWEETER output to the MCC404/MCC404M channel 1 input. 8. Connect an audio cable from the external crossover MID-RANGE output to the MCC404/MCC404M channel 2 input. 9. Connect an audio cable from the external crossover WOOFER output to the MCC404/MCC404M channel 3 input. 1.
How to Connect for Two Channels How to Connect for Two Channels 1. Connect the cable from the Control Center Amp On to the MCC404/MCC404M 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 cable from a McIntosh Control Center with Power Guard to the MCC404/MCC404M PG Connector on the right side of the amplifier. 3.
How to Connect with Subwoofer Channel How to Connect with Subwoofer Channel 1. Connect the cable from the Control Center Amp On to the MCC404/MCC404M 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 cable from a McIntosh Control Center with Power Guard to the MCC404/MCC404M PG Connector on the right side of the amplifier. 3.
Top Panel Controls, Display and Switches CH 3/4 LOW PASS Filter Switch and Control selects the high roll-off frequency or flat frequency response CH 3/4 MODE Switch selects STEREO or BRIDGE mode of operation CH 3/4 EQUALIZER Controls select the Frequency and the Level of Boost or Cut at the Center Frequencies CH 3/4 HIGH PASS Filter Switch and Control select the low frequency roll-off rate or flat frequency response POWER GUARD LED lights when the Power Guard Circuit activates for Amplifier Channels 3
How to Operate the MCC404/MCC404M Introduction The McIntosh MCC404/MCC404M 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.
How to Operate in Four or Three Channel Mode How to Operate Four Channel Mode How to Operate Three Channel Mode In the 4 Channel Operating Mode, all channels operate as independent 100 watt amplifiers. A typical four channel application is to drive a pair full range loudspeakers in the front section of a vehicle and a second pair in the rear. Refer to figures 9 and 10.
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 400 watt amplifiers. A typical application is use of a more powerful amplifier for stereo reproduction. Refer to figures 9 and 10.
How to Replace the Fuses How to Replace the Fuses If the MCC404/MCC404M 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 Amplifier 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 problem in the amplifier, may incur a risk of further damage. Refer to figures 11, 12 and 13.
MCC404/MCC404M Block Diagram MCC404/MCC404M Block Diagram 17
Specifications Specifications Power Output Per Channel 100 watts into 4 ohm loads and 200 watts into 2 ohm loads is the minimum sine wave continuous average power output per channel all four channels operating. Power Output Bridged 400 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.
