Eight Channel Power Amplifier MC58 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 MC58 Eight 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. Thank You...........................
Important Information Connector Information 1. Connecting Cables and Connectors are available from the McIntosh Parts Department: Power Control Cable Part No. 170-202 Six foot, shielded 2 conductor, with 1/8 inch stereo mini phone plugs on each end. Control Center to Multichannel Power Amplifier Cable Part No. 170-631 Six foot, DB25, shielded, straight through, 25 conductor male-to-female cable. Multizone Control System to Multichannel Power Amplifier Cable Part No.
Introduction and Performance Features Introduction Eight 50 watt McIntosh amplifier channels in one convenient package make the MC58 an ideal amplifier for a multizone system. The MC58 can be configured in different Operating Modes to fit a wide range of uses where a multichannel amplifier is required. For example, it has the ability to bridge a pair of channels for 100 watts output.
MC58 Dimensions The following dimensions can assist in determining the best location for your MC58. There is additional information on the next page pertaining to installing the MC58 into cabinets. 17-1/2" 44.45cm Front View of the MC58 7 -1/8" 18.10cm 7 -5/8" 19.37cm 17" 43.18cm 6 -5/16" 16.03cm Rear View of the MC58 13 -1/4" 33.66cm 18-1/2" 46.99cm 17" 43.18cm Side View of the MC58 13/16" 2.06cm 6 3/16" 6-1/2" 0.48cm 16.51cm 14-1/16" 35.72cm 7/8" 2.
Dimensions and Installation Installation The MC58 can be placed upright on a table or shelf, standing on its four 1 inch high feet. The four feet may be removed from the bottom of the MC58 when it is custom installed as outlined below. The four feet together with the mounting screws should be retained for possible future use if the MC58 is removed from the custom installation and used free standing. It also can be custom installed in a piece of furniture or cabinet of your choice.
MC58 Rear Panel Controls, Connections and Switch IN for discrete audio cables from a Multizone Control or Home Theater System and OUT sends the input signal to another component POWER CONTROL IN receives turn on/off signals from a McIntosh component and the POWER CONTROL OUT sends that turn on/off signal to the next McIntosh component 8 CHANNEL IN accepts a 25 conductor DB25 computer type cable that connects all audio and power control signals Selects power turn-on mode Connect the MC58 power cord to a
How to Connect with a CR16 How to Connect with a CR16 1. Connect the loudspeaker cables to the appropriate channel output connectors, being careful to observe the correct polarities. 2. Connect a single DB25 computer type cable from the Multichannel Output of a Mutlizone Control System to the MC58 8 CHANNEL INput connector for all eight audio channels and power control. McIntosh CR16 Multizone Control System Note: Both audio and zone power control pass through this cable.
How to Connect two MC58s in Bridge Mode How to Connect two MC58s in Bridge Mode The MC58 Eight Channel Power Amplifier has a Bridge Mode, which doubles the power output for each of the four Stereo Amplifier Pairs. Two MC58s, together with a CR16 provides higher power out for each of the four Zones. Note: Only Zone One is illustrated below. Follow a similar procedure for Zones Two through Four on the MC58. 1.
How to Connect in a Home Theater System How to Connect in a Home Theater System The MC58 Eight Channel Power Amplifier can be used in a Home Theater System with three of the six channels in Bridge Mode. This doubles the power output for the three front channels. 1. Connect the Loudspeaker Cables to the appropriate Bridged and Non-Bridged Channel Output Connections, being careful to observe the correct polarities. 2.
MC58 Front Panel Displays and Controls POWER LED lights when the Amplifier Channels 3 and 4 Circuits activate POWER LED lights when the Amplifier Channels 1 and 2 Circuits activate POWER LED lights when the Amplifier Channels 7 and 8 Circuits activate POWER LED lights when the Amplifier Channels 5 and 6 Circuits activate Remote On Indicator POWER GUARD LEDs light when the amplifier channels 1 or 2 POWER GUARD circuits activate POWER GUARD LEDs light when the amplifier channels 3 or 4 POWER GUARD circu
How to Operate the MC58 How to Operate the MC58 How to Operate with a Bridged Channel Power On To have the MC58 turn on or off when a multizone system turns on or off, the front panel power switch must be left in the on position and the rear panel power control switch must be in the remote position. For non-remote operation, set the rear panel power control switch to local and use the front panel power switch to turn the MC58 on or off as desired. Refer to figure 1.
Specifications Specifications Power Output Per Channel 50 watts into 4 ohm load and 30 watts into 8 ohm load is the minimum sine wave continuous average power output per channel, all channels operating. Power Output Bridged 100 watts into 8 ohm load is the minimum sine wave continuous average power output per channel, all channels operating. 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.
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. Three #10 x 2-1/4” screws and washers must be used to fasten the unit securely to the bottom pad and wood 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.
