McIntosh MC126 Owner's Manual download pdf (Page 4)

Performance Features

Introduction and Performance Features

Introduction

· Power Output

The MC126 consists of six separate power amplifier chan-

nels, each capable of 120 watts into 4 ohm speakers with

less than 0.005% distortion. It may also be used as a Three

Channel Amplifier with each channel capable of 275 watts

into 8 ohm speakers.

· High Current Output

A peak output current of 10 amperes per channel ensures

that the MC126 will successfully drive high quality loud-

speakers such as McIntosh for a truly exciting sound expe-

rience.

· Power Guard

The MC126s Patented McIntosh Power Guard Circuits

prevent each of the amplifier channels from being

overdriven into clipping, with its harsh distorted sound that

can also damage your valuable loudspeakers.

· Sentry Monitor and Thermal Protection

McIntosh Sentry Monitor power output stage protection

circuits ensure the MC126 will have a long and trouble free

operating life. Built-in Thermal Protection Circuits guard

against overheating.

Now you can take advantage of traditional McIntosh stan-

dards of excellence in the MC126 Power Amplifier. Six

120 watt high current output channels will drive any high

quality loudspeaker system to its ultimate performance.

The MC126 reproduction is sonically transparent and abso-

lutely accurate. The McIntosh Sound is The Sound of the

Music Itself.

Table of Contents

Safety Instructions ............................................................ 2

Thank You and Please Take a Moment............................. 3

Technical Assistance and Customer Service .................... 3

Table of Contents and General Notes ............................... 4

Introduction ...................................................................... 4

Performance Features ....................................................... 4

Dimensions ....................................................................... 5

Installation ........................................................................ 6

Rear Panel Connections and Switch ................................. 7

How to Connect for Six Channels .................................... 8

How to Connect for Three Channels .............................. 10

Front Panel Displays and Controls ................................. 12

How to Operate ............................................................... 13

Specifications ................................................................. 14

Packing Instruction ......................................................... 15

General Notes

1. The following Connecting Cable is available from the

McIntosh Parts Department:

Power Control Cable Part No. 170-202

Six foot, 2 conductor shielded, with two 1/8 inch stereo

mini phone plugs.

2. For additional connection information, refer to the owners

manual(s) for any component(s) connected to the MC126.

3. The MC126 mutes the speaker outputs for approximately two

seconds when first turned on.

4. It is very important that loudspeaker cables of adequate size

be used, so that there will be no power loss. The size is

specified in Gauge Numbers or AWG, (American Wire Gauge).

The smaller the Gauge number, the larger the wire size. The

MC126 Loudspeaker Connection Terminals will accept up to a

10 AWG wire size:

If your loudspeaker cables are 50 feet (38.1m) or less,

use at least 14 Gauge.

If your loudspeaker cables are 100 feet (76.2m) or less,

use at least 12 Gauge.

5. In the event that the MC126 over heats, due to improper

ventilation and/or high ambient temperature, the protection

circuits will activate. The Front Panel Power Guard LEDs

will continuously indicate ON and the audio will be muted.

When the MC126 has returned to a safe operating

temperature, normal operation will resume.

6. The Multi-Channel Input DB25 Connector allows for easy

connecting of a McIntosh MX130/132 or C39 A/V Control

Center, Audio and Power Control connections, to the MC126.

If a McIntosh MSE1 Surround Expander is connected to the

MX130/132 or C39, then discrete Audio and Power Control

Cables should be used between them and the MC126. The

Diagram and Pin Identification list for the Multi-Channel

Input is as follows:

Multi-Channel Amp DB25 Connector Pin Layout

1. Left Front + 14. Left Front Gnd.

2. Center Front + 15. Center Front Gnd.

3. Right Front + 16. Right Front Gnd.

4. N/C 17. N/C

5. Left Surround + 18. Left Surround Gnd.

6. Right Surround + 19. Right Surround Gnd.

7. Left Back Surround + 20. Left Back Surround Gnd.

8. Right Back Surround + 21. Right Back Surround Gnd.

9. N/C 22. N/C

10. N/C 23. N/C

11. N/C 24. System Calibrate Gnd.

12. System Calibrate 25. Power Control Gnd.

13. Power Control In

Multi-Channel Input

1 2 3 4 5 6 7 8 9 ... 15 16

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McIntosh MC126 Owner's Manual Page 4

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