Power Amplifier MC205 Owner’s Manual 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. 1. Read these instructions. 2. Keep these instructions. 3.
Thank You Table of Contents Your decision to own this McIntosh MC205 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 .............................
Connector Information, Introduction and Performance Features Connector and Cable Information XLR Connectors Below is the Pin configuration for the XLR Balanced Input Connectors on the MC205. Refer to the diagram for connection: PIN 1: Shield/Ground PIN 2: + Output PIN 3: - Output PIN 1 PIN 2 PIN 3 Power Control Connector The MC205’s Power Control Inputs receive On/Off signals of +5 volts. An additional connection Power is for controlling the illumination of Control the MC205 Power Output Meters.
Dimensions Dimensions The following dimensions can assist in determining the best location for your MC205. There is additional information on the next page pertaining to installing the MC205 into cabinets. 17-1/2" 44.45cm Front View of the MC205 8-7/8" 22.54cm 9-7/16" 23.97cm 16-13/16" 42.70cm Rear View of the MC205 11-3/4" 29.85cm 18-3/4" 47.63cm 16-7/16" 41.75cm Side View of the MC205 3/16" 0.48cm 7/8" 2.22cm 12" 30.48cm 8-1/4" 20.96cm 2" 5.
Installation Installation fier, so that airflow is not obstructed. Allow 19-1/2 inches The MC205 can be placed upright on a table or shelf, (49.53cm) depth behind the front panel. Allow 7/8 inch standing on its four feet. It also can be custom installed in (2.22cm) in front of the mounting panel1 for clearance. Be a piece of furniture or cabinet of your choice.
Rear Panel Connections Connect the MC205 power cord to a live AC outlet.
How to Connect for a Five Channel System Caution: The supplied AC Power Cord should not be connected to the Rear Panel of the MC205 Power Amplifier until after the Loudspeaker Connections have been made. Failure to observe this could result in Electric Shock. 1. Connect Audio Cables from the Zone A Unbalanced Outputs of a McIntosh A/V Control Center to the MC205 INPUTS (Channels 1-5), making sure to match up the channel identifications between both units.
How to Connect for a Five Channel System Left Front Loudspeaker Center Front Loudspeaker Right Front Loudspeaker + + - + To AC Outlet Left Surround Loudspeaker Right Surround Loudspeaker - + + - 9
How to Connect for a Seven Channel System Caution: The supplied AC Power Cord should not be connected to the Rear Panel of the MC205 Power Amplifier until after the Loudspeaker Connections have been made. Failure to observe this could result in Electric Shock. 1. Connect Audio Cables from the Zone A Unbalanced Outputs of a McIntosh A/V Control Center to the MC205 INPUTS (Channels 1-5), making sure to match up the channel identifications between both units.
How to Connect for a Seven Channel System McIntosh Two Channel Power Amplifier Right Front Loudspeaker Left Front Loudspeaker Center Front Loudspeaker + To AC Outlet Right Surround Loudspeaker Left Surround Loudspeaker - - + + Back Right Surround Loudspeaker Back Left Surround Loudspeaker - + + 11
How to Connect for a Five Channel and Zone B System Caution: The supplied AC Power Cord should not be connected to the Rear Panel of the MC205 Power Amplifier until after the Loudspeaker Connections have been made. Failure to observe this could result in Electric Shock. 1. Connect Audio Cables from the Zone A Unbalanced Outputs of a McIntosh A/V Control Center to the MC205 INPUTS (Channels 1, 3 and 5), making sure to match up the channel identifications between both units.
How to Connect for a Five Channel and Zone B System McIntosh Two Channel Power Amplifier Right Front Loudspeaker Left Front Loudspeaker Center Front Loudspeaker + To AC Outlet Right Surround Loudspeaker Left Surround Loudspeaker - - + + Zone B Left Loudspeaker Zone B Right Loudspeaker - + + 13
Front Panel Displays and Switches LED indicates when Amplifier Channels 1, 3 or 5 POWER GUARD circuit activates Meter indicates the Power Output of the amplifier for Channels 1, 3 and 5 POWER Switch Turns AC Power On or Off/ Remote (On/Off) LED indicates when Amplifier Channels 2 or 4 POWER GUARD circuit activates METER LIGHTS Switch selects the Meter Illumination On or Off 14 Standby Power On Indicator
How to Operate the MC205 How to Operate the MC205 Power With the POWER Switch set to the OFF/REMOTE Position, the MC205 will turn On or Off when an A/V Control Center turns On or Off. For manual operation, place the POWER Switch to the ON Position as desired. Refer to figure 8. Note: There must be a power control connection between the MC205 and the McIntosh A/V Control Center in order for the remote power turn-on to function.
Technical Description A continuous average power output rating of 200 watts and an output current of greater than 25 amperes per channel, makes this one of the most advanced and powerful amplifiers McIntosh has ever manufactured. Refer to figures 13 and 14. The distortion limits for the MC205 are no more than 0.005% at rated power output for all frequencies from 20Hz to 20,000Hz. Typical performance at mid frequencies is less than 0.002%.
Technical Description distortion is unpleasant to hear, but the inaudible ultrasonic distortion is also undesirable, since it can damage valuable Loudspeaker System tweetWithout Power Guard ers. You will never experience the harsh and damaging distortion due to clipping. The Power Guard circuit is a waveform comparator, monitoring both the input and output waveforms. Under normal operating conditions, there are no differences between the shape of these waveforms.
Specifications Specifications Power Output Minimum sine wave continuous average power output per channel, all channels operating is: 200 watts into a 4 ohm or 8 ohm load Output Load Impedance 8 and 4 ohms Rated Power Band 20Hz to 20,000Hz Total Harmonic Distortion 0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz Dynamic Headroom 1.7dB Frequency Response +0, -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. 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 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.
