Specifications

of current amplification. All stages are complimentary
balanced. Even number harmonics are canceled by the
balanced circuits. This means that the amplifying stages
have less total harmonic distortion and less negative
feedback is required to achieve ultra low distortion.
The signal is fed to the input of the balanced
differential stages. Feedback from the amplifier output
is applied to the other inputs. The differential amplifiers
drive a balanced cascade connected voltage amplifier
stage. Current mirrors are also used to improve
bandwidth and linearity.
The cascade voltage amplifiers output feeds
complementary Darlington connected drivertransistors.
These supply the signal to 20 complementary connected
output transistors per side. Ancillary components for
Power Guard, Sentry Monitor, Power Output Meter and
other protection circuits interconnect with the amplifier
circuits. The power supply uses a massive power
transformer, full wave bridge rectifiers. Large filter
capacitors having 400 joules of energy storage. Eight
large heatsinks provide cooling for the 40 output power
transistors.
The mechanical and electrical design of the
MC1000 is the result of the many years of engineering
and manufacturing experience held by the staff at
Mclntosh. This "know how", the meticulous attention
to design and production details, makes the MC1000
the finest amplifier ever produced by Mclntosh
Laboratory.
Issued by Engineering Department:
October 25, 1991
Revised:
October 29, 1991
November 1, 1991
December 2, 1991
January 21, 1992
MClNTOSH LABORATORY INC., 2 CHAMBERS STREET, BlNGHAMTON, NEW YORK 13903
MC1000 Product Preview/Page 7