Introduction and Performance Features
Table of Contents | Introduction | |
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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 Loudspeakers | 8 |
How to Connect for Audio and Data Control | 9 |
How to Connect for Video | 10 |
How to Connect for a Second Room | 11 |
Front Panel Controls, Display, Indicator |
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and Switch | 12 |
How to Operate | 13 |
Remote Control | 16 |
How to Operate by Remote Control | 17 |
Technical Description | 18 |
Specifications | 22 |
Packing Instruction | 23 |
General Notes
1.The following parts are available from the McIntosh Parts Department:
Power Control Cable Part No.
Six foot, 2 conductor shielded, with two 1/8 inch stereo mini phone plugs.
Jumper Plugs Part No.
RCA Phono Jumpers, 14mm center spacing.
2.For additional connection information, refer to the owner’s manual(s) for any component(s) connected to the MA6900.
3.The MA6900 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:
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.Pin configuration for the XLR Balanced Input connectors on the MA6900: PIN 1: Shield or ground
PIN 2: + input
PIN 3: - input
6.In the event that the MA6900 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 MA6900 has returned to a safe operating temperature, normal operation will resume.
Now you can take advantage of traditional McIntosh stan- dards of excellence in the MA6900 Integrated Amplifier. Two 200 watt high current output channels will drive any high quality loudspeaker system to its ultimate perfor- mance and the flexible Preamplifier Selection provides for hookup and control of various input sources. The MA6900 reproduction is sonically transparent and absolutely accu- rate. The McIntosh Sound is “The Sound of the Music It- self.”
Performance Features
·Power Output
The MA6900 consists of two separate power amplifier channels, each capable of 200 watts into 2, 4 or 8 ohm speakers with less than 0.005% distortion.
·Electronic Input Switching
Digital Logic integrated circuits drive Electromagnetic Switches on all six inputs and operating functions for reli- able, noiseless, distortion free switching.
·Power Guard
Both channels include the patented McIntosh Power Guard circuit that prevents the amplifier 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 MA6900 will have a long and trouble free operating life.
·Patented Autoformers
McIntosh designed and manufactured Output Autoformers provide an ideal match between the amplifier output stages and speaker loads of 2, 4 and 8 ohms. The Autoformers also provide perfect DC protection for your valuable loud- speakers.
·Illuminated Power Meters
The Illuminated Power Output Meters on the MA6900 are peak responding, and indicate the power output of the am- plifier.
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