McIntosh MA7000 - Manual (Page 15)

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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.
Technical Description
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