Owner’s Manual MC402 Power Amplifier MC402 McIntosh Laboratory, Inc.
The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. WARNING - TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. IMPORTANT SAFETY INSTRUCTIONS! PLEASE READ THEM BEFORE OPERATING THIS EQUIPMENT. General: 1. Read these instructions. 2.
Thank You A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 18. Do not overload wall outlets, extension cords or integral convenience receptacles as this can result in a risk of fire or electric shock. 19.
Introduction and Performance Features Table of Contents Connector Information Safety Instructions ............................................................ 2 Thank You and Please Take a Moment............................. 3 Technical Assistance and Customer Service .................... 3 Table of Contents, Important Information and Connector Information ..................................................... 4 Introduction ......................................................................
Introduction Now you can take advantage of traditional McIntosh standards of excellence in the MC402 Power Amplifier. Two 400 watt high current output channels will drive any high quality Loudspeaker system to its ultimate performance. The MC402 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 MC402. There is additional information on the opposite page pertaining to installing the MC402 into cabinets. 17-1/2" 44.45cm Front View of the MC402 8-13/16" 22.38cm 9-7/16" 23.97cm 16-13/16" 42.70cm Rear View of the MC402 12-1/4" 31.12cm 18-3/4" 47.63cm 16-5/16" 41.43cm 8-1/4" Side View of the MC402 3/16" 0.48cm 7/8" 2.22cm 13" 33.02cm 6 20.96cm 15/16" 2.
Installation Installation bottom and 3 inch (7.62cm) on each side of the amplifier, The MC402 can be placed upright on a table or shelf, standing on its four feet. It also can be custom installed in a so that airflow is not obstructed. Allow 22 inches (55.88cm) depth behind the front panel. Allow 1 inch piece of furniture or cabinet of your choice. The four feet (2.54cm) in front of the mounting panel for knob clearance.
Top View 8
Rear Panel Connections and Switches OUTPUT MODE Switch selects STEREO, or MONO PARALLEL Modes of operation Main Fuse holder, refer to information on the back panel of the MC402 to determine the correct fuse size and rating POWER CONTROL IN receives a turn On/Off Trigger from a McIntosh component BALANCED INPUTS for audio cables from a preamplifier or control center audio outputs RIGHT OUTPUTs Connections for 2, 4, and 8 ohm Loudspeakers POWER CONTROL OUT sends a turn On/Off Trigger to the next McIntos
How to Connect for Stereo Caution: The supplied AC Power Cord should not be connected to the Rear Panel of the MC402 Amplifier until after the Loudspeaker Connections have been made and the supplied protective Terminal Connections Cover has been installed. Failure to observe this could result in Electric Shock. hole, and tighten the terminal cap until the cable is firmly clamped into the terminal so the wires cannot slip out. Refer to figures 4, 5 & 6.
How to Connect for Stereo McIntosh Audio Control Center To AC Outlet Right Loudspeaker 4 ohm Left Loudspeaker 4 ohm 11
How to Connect for Mono Parallel Banana plug connection: Insert the banana plug into the hole at the top of the terminal. Tighten the top portion of the terminal post and the set screw to secure the banana plug in place. Caution: The supplied AC Power Cord should not be connected to the Rear Panel of the MC402 Amplifier until after the Loudspeaker Connections have been made and the supplied protective Terminal Connections Cover has been installed. Failure to observe this could result in Electric Shock. 1.
How to Connect for Mono Parallel McIntosh Audio Control Center Jumper Cables To AC Outlet Mono Parallel Hookup Connections Loudspeaker System 4 ohm Louds peaker Impedance Louds peaker Negative Connection Louds peaker Pos itive Connection 1S (Ohm) Left and Right Out put 2S - (Negative) Connect ion Left and Right Output 2S + (Posit ive) Connection 2S (Ohm) Left and Right Out put 4S - (Negative) Connect ion Left and Right Output 4S + (Posit ive) Connection 4S (Ohm) Left and Right Out put 8S - (N
Front Panel Displays and Controls POWER GUARD LED lights when the Amplifier Left Channel POWER GUARD Circuit activates METER indicates the Left Channel Power Output of the amplifier METER Switch selects the display modes of the Power Output Meters 14 POWER GUARD LED lights when the Amplifier Right Channel POWER GUARD Circuit activates Remote On Indicator lights when the amplifier is in the Remote Turn-On Mode METER indicates the Right Channel Power Output of the amplifier POWER Switch Turns AC Power
How to Operate the MC402 How to Operate the MC402 Power On To have the MC402 automatically turn On or Off when a McIntosh Control Center turns On or Off, rotate the power switch to the REMOTE Position. For manual operation, rotate the power switch to the ON or OFF Position as desired. Refer to figure 15. Note: There must be a power control connection between the MC402 Figure 15 and the McIntosh Control Center, in order for the remote power turn-on to function.
Technical Description McIntosh Laboratory, the company who introduced the world’s first amplifier that could be called “High Fidelity”, has done it again. The McIntosh engineering staff has created a power amplifier without compromise, using the most advanced McIntosh circuit design concepts.
Technical Description tributes to low operating temperatures. More than 2,000 square inches of heat sink area keep the MC402 operating safely with convection cooling. No fans are needed. Autoformers All solid state power amplifier output circuits work best into an optimum load. This optimum load may vary considerably from what a Loudspeaker requires. In the case of more than one Loudspeaker connected in parallel, the load to the power amplifier may drop to two ohms or even less.
Specifications Specifications Power Output Stereo Minimum sine wave continuous average power output per channel, all channels operating is: 400 watts into 2 ohm load 400 watts into 4 ohm load 400 watts into 8 ohm load Power Output Mono Parallel Minimum sine wave continuous average power output is: 800 watts into 1 ohm load 800 watts into 2 ohm load 800 watts into 4 ohm load Output Load Inpedance 2, 4 or 8 ohms (Stereo Mode) 1, 2 or 4 ohms (Mono Mode) Rated Power Band 20Hz to 20,000Hz Total Harmonic Distorti
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. It is very important that the four plastic feet are attached to the bottom of the equipment. Four 1/4 - 20 x 2-1/ 2 inch screws and washers must be used to fasten the unit securely to the bottom pad and shipping skid. This will ensure the proper equipment location on the bottom pad. Failure to do this will result in shipping damage.
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, NY 13903 McIntosh Part No.
