Technical Description

McIntosh Laboratory, the company who introduced the world’s first amplifier that could be called “High Fidel- ity”, has done it again. The McIntosh engineering staff has created a power amplifier without compromise, using the most advanced McIntosh circuit design concepts.

A continuous average power output rating of 250 watts and with an output current of greater than 50 amperes per channel, making this the most advanced Integrated Ampli- fier McIntosh has ever manufactured. The distortion limits for the MA7000 are no more than 0.005% at rated power output for all frequencies from 20Hz to 20,000Hz. Typical performance at mid frequencies is less than 0.002%. The true distortion readings on the MA7000 are so low, it takes special measuring techniques to make accurate readings.

The MA7000 can deliver the best possible performance from any type of high quality loudspeaker system.

Creating an amplifier with this level of performance did not come easily. Many months of design, testing and mea- suring were required. Extensive controlled listening tests, the ultimate form of measuring, were made before the final design was accepted.

Preamplifier Design Philosophy

All Audio Signal Switching in the MA7000 is done by 25 Electro-Magnetic devices. Electro-Magnetic Switching is a proven technology that uses the latest in materials and manufacturing methods. Each switch consists of a glass tube that is filled with an inert oxygen-free atmosphere and

MA7000 Top View