McIntosh MC-402 manual

McIntosh Laboratory , Inc. 2 Chambers Street Binghamton, New Y ork 13903-2699 Phone: 607-723-3512 F AX: 607-724-0549 Owner ’ s Manual MC402 MC402 Power Amplifier[...]

2 IMPOR T ANT SAFETY INSTRUCTIONS! PLEASE READ THEM BEFORE OPERA TING THIS EQUIPMENT . W ARNING - TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” withi[...]

3 Customer Service T echnical Assist ance Please T ake A Moment Thank Y ou Copyright 2002  by McIntosh Laboratory , Inc. The serial number , purchase date and McIntosh Dealer name are important to you for possible insurance claim or future service. The spaces below have been provided for you to record that information: Y our decision to own this[...]

4 Introduction and Performance Features T able of Content s Safety Instructions ............................................................ 2 Thank Y ou and Please T ake a Moment ............................. 3 T echnical Assistance and Customer Service .................... 3 T able of Contents, Important Information and Connector Information ....[...]

5 Performance Features Introduction • • • • • Power Output The MC402 consists of two separate power amplifier chan- nels, each capable of 400 watts into 2, 4 or 8 ohm speakers with less than 0.005% distortion. • • • • • Exclusive Double Balanced Circuity Each channel of the MC402 consists of two balanced power amplifiers operati[...]

6 17- 1/2 " 44.45cm 8- 13/16 " 22.38cm Front V iew of the MC402 Rear V iew of the MC402 9- 7/16 " 23.97cm 12- 1/4 " 31.12cm 16 -13/16 " 42.70cm Side V iew of the MC402 18- 3/4 " 47.63cm 3/16 " 0.48cm 7/8 " 2.22cm 8- 1/4 " 20.96cm 13" 33.02cm 16 -5/16 " 41.43cm 15/16 " 2.38cm Dimensions The[...]

7 The MC402 can be placed upright on a table or shelf, standing on its four feet. It also can be custom installed in a piece of furniture or cabinet of your choice. The four feet may be removed from the bottom of the MC402 when it is custom installed as outlined below . The four feet together with the mounting screws should be retained for possible[...]

8 T op View[...]

9 UNBALANCED INPUTS for audio cables from a preamplifier or control center audio outputs Rear Panel Connections and Switches Connect the MC402 power cord to a live AC outlet. Refer to information on the back panel to deter- mine the correct volt- age BALANCED INPUTS for audio cables from a preamplifier or control center audio outputs POWER CONTROL [...]

10 How to Connect for Stereo 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. Banana plug connection: Insert the banana plug into the hole at the top of the terminal. T ighten the top portion of the terminal post and the set screw to secure the banana[...]

11 How to Connect for Stereo To A C Outlet Right Loudspeaker 4 ohm Left Loudspeaker 4 ohm McIntosh Audio Control Center[...]

12 Cover Mounting Screw Locations Cover Mounting Screw Locations T erminal Connections Cover Cable Openings Figure 14 Cover Mounting Screw Location Banana plug connection: Insert the banana plug into the hole at the top of the terminal. T ighten the top portion of the terminal post and the set screw to se- cure the banana plug in place. Note: The B[...]

13 M ono P ar all e l H o okup C onne ct ion s Louds pea ker Im pe da nc e Louds pea ker Nega t iv e Connect ion Louds pe a k e r Pos i tiv e Connect ion 1 S (O hm ) L e f t a n d Ri gh t Out p ut 2 S - ( Negat i v e ) Con n e ct io n Le f t a n d Ri gh t Out p ut 2 S + ( P o sit iv e ) Co n n ec t i o n 2 S (O hm ) L e f t a n d Ri gh t Out p ut 4[...]

14 Front Panel Displays and Controls METER indicates the Left Channel Power Output of the amplifier METER Switch selects the display modes of the Power Output Meters POWER Switch Turns AC Power Off, Remote or On Remote On Indicator lights when the amplifier is in the Remote T urn-On Mode METER indicates the Right Channel Power Output of the amplifi[...]

15 How to Operate the MC402 How to Operate the MC402 Power On T o have the MC402 automatically turn On or Off when a McIntosh Control Center turns On or Off, rotate the power switch to the RE- MOTE Position. For manual opera- tion, rotate the power switch to the ON or OFF Position as desired. Refer to figure 15. Note: Ther e must be a power contro [...]

16 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 cre- ated a power amplifier without compromise, using the most advanced McIntosh circuit design concepts. A continuous average power output rating of 400 watts and with an[...]

17 T echnical Description tion. Refer to Figure 22. The MC402 also includes the unique patented McIntosh Power Guard circuit. Power Guard eliminates the possibil- ity of ever overdriving the amplifier into clipping. Figures 23, 24 and 25 are actual Spectrum Analyzer measurements of a McIntosh Power Amplifier, with a test signal consisting of 14kHz [...]

18 Specifications Specifications Power Output S tereo 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 [...]

19 Packing Instructions Packing Instructions Quantity Part Number Description 1 034052 Shipping carton top 1 034051 Shipping carton bottom 2 034054 Foam Pad (top and bottom) 2 034186 Foam Pad (front and rear) 2 034187 Foam Pad (sides) 1 034136 Inner carton top 1 034137 Inner carton bottom 1 034188 Foam Pad (inner carton) 1 034008 Bottom pad 1 03422[...]

McIntosh Part No. 040838 McIntosh Laboratory , Inc. 2 Chambers Street Binghamton, NY 13903[...]