McIntosh MC302 Owner'S Manual Download Page 1

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McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com

MC302

Power Amplifier

Owner’s Manual

Summary of Contents for MC302

Page 1: ...McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 2699 Phone 607 723 3512 www mcintoshlabs com MC302 Power Amplifier Owner s Manual...

Page 2: ...d for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularl...

Page 3: ...amiliar with your McIntosh equipment and any other brands that may be part of your system If you or your Dealer wish additional help concerning a suspected problem you can receive technical assistance...

Page 4: ...ovide perfect DC protection for your valuable loudspeakers Balanced and Unbalanced Inputs Balanced connections guard against induced noise and allow long cable runs without compromising sound quality...

Page 5: ...r MC302 Dimensions Front View of the MC302 Rear View of the MC302 Side View of the MC302 17 1 2 44 45cm 8 7 8 22 54cm 9 7 16 23 97cm 11 3 4 29 85cm 16 13 16 42 70cm 20 3 16 51 27cm 3 16 0 48cm 6 6 17...

Page 6: ...ble oper ating temperature A custom cabinet installation should provide the fol lowing minimum spacing dimensions for cool opera tion Allow at least 6 inches 15 24cm above the top 2 inches 5 08cm belo...

Page 7: ...audio cable from a Preamplifier or A V Control Center audio output INPUT MODE switch selects between Balanced or Unbalanced Inputs Balanced INputs RIGHT and LEFT Channels for audio cables from a Pre a...

Page 8: ...t Terminals When connecting Loudspeakers to the MC302 it is very important to use cables of adequate size so there is little to no power loss in the cables The size is specified in Gauge Numbers or AW...

Page 9: ...st lower impedance connection Refer to General Informa tion Note 4 on page 3 for additional information WARNING Loudspeaker terminals are hazard ous live and present a risk of electric shock For addit...

Page 10: ...the MC302 Balanced INput RIGHT and LEFT on Amplifier Two Place the INPUT MODE Switch in the BALANCED Position Note An optional hookup is to use unbalanced cables and place the INPUT MODE Switch in th...

Page 11: ...gure H connect the Loudspeaker hookup cables with banana plugs into the hole at the top of the terminal to the MC302 COM Negative Output Terminal and Positive Output Terminal indentified as 2 ohms 4 o...

Page 12: ...the display modes of the Power Output Meter and Meter Illumination Meter indicates the Right Channel Output of the amplifier LED indicates when the LEFT Channel Amplifier POWER GUARD circuit activate...

Page 13: ...will continue to indicate the power output Note When Power Control Input of the MC302 is connected to a Audio Preampli fier or A V Control Center with Remote Meter Illumination Con trol the Meter Illu...

Page 14: ...e readings The MC302 can deliver the best possible performance from any type of high quality loudspeaker system Refer to figure 12 Creating an amplifier with this level of perfor mance did not come ea...

Page 15: ...s and thus precise ly controls the power amplifier operation over a wide range of music conditions with the benefits of lower distortion and cooler operation Precision metal film resistors and low die...

Page 16: ...cIntosh Sentry Moni tor Output Transistor Protection Circuit Refer to Figure 18 There is absolutely no compromise in sonic performance with this circuit and it ensures safe opera tion of the ampli fie...

Page 17: ...he MC302 Power Am plifier Circuitry there is a high current high voltage power supply for both channels Refer to figures 22 and 25 The very large Power Transfomer can supply over 13 amps of continuous...

Page 18: ...d Damping Factor Greater than 40 Input Impedance 22 000 ohms Balanced 22 000 ohms Unbalanced Voltage Gain 29dB 8 Ohms 26dB 4 Ohms 23dB 2 Ohms Power Guard Less than 2 Total Harmonic Distortion with up...

Page 19: ...shipping damage Use the original shipping carton and interior parts only if they are all in good serviceable condition If a shipping carton or any of the interior part s are needed please call or writ...

Page 20: ...cts is the policy of McIntosh Laboratory Incorporated who reserve the right to improve design without notice Printed in the U S A McIntosh Laboratory Inc 2 Chambers Street Binghamton NY 13903 www mcin...