Specifications

MODULAR CONSTRUCTION
If service should be required, modular construction
makes repairs easier.
TOROID POWER TRANSFORMER
The toroid permits a low profile design with low
noise and cool operation.
Performance Specifications
STEREO POWER OUTPUT
150 watt into 4 ohm loads or 100 watts into 8
ohm loads minimum sine wave continuous average
power output per channel, both channels operating.
The output RMS voltage is:
28.3 across 8 ohms
24.5 across 4 ohms
MONO (Bridged):
300 watts into an 8 ohm load minimum sine wave
continuous average power output, which is 49 volts
RMS.
OUTPUT LOAD IMPEDANCE
STEREO
8 or 4 ohms.
MONO
8 ohms.
RATED POWER BAND
20Hz to 20kHz
TOTAL HARMONIC DISTORTION
0.005% maximum harmonic distortion at any power
level from 250 milliwatts to rated power output
IHF DYNAMIC HEADROOM
8 ohms. 1 7dB
4 ohms, 2.1dB
FREQUENCY RESPONSE
+ 0, -0.25dB from 20Hz to 20kHz
+ 0, -3.0dB from 10Hz to 100kHz
INPUT SENSITIVITY
1 4 volts (2.5V at gain control center detent)
A-WEIGHTED SIGNAL-TO-NOISE RATIO
95dB (115dB below rated output)
INTERMODULATION DISTORTION, SMPTE
0.005% maximum if instantaneous peak power
output does not exceed twice the output power rating.
Ratings
WIDE BAND DAMPING FACTOR
8 ohms, 200
4 ohms, 100
INPUT IMPEDANCE
20,000 ohms
POWER GUARD
Clipping is prevented and THD does not exceed
2% with up to 15dB overdrive at 1 kHz.
POWER REQUIREMENTS
120 volts, 50/60Hz, 3.0 amps UL/CSA
How to Connect Amplifier
INPUT
Use shielded cables to connect the signal from
the preamplifier or signal source to the power amplifier
input. To minimize the possibility of hum the shielded
cables should be run parallel to each other or loosely
twisted together. Locate the cables away from speaker
leads and AC power cords. All connections are made
on the back panel of the MC7100.
The left output of the preamplifier should be
plugged into the LEFT INPUT jack of the power amplifier
The right output of the preamplifier should be plugged
into the RIGHT INPUT jack of the power amplifier.
OUTPUT
Selection of the proper gauge wire to connect
the loudspeakers preserves the quality of sound re-
production for which the loudspeakers have been
designed. If undersize wire is used, resistance is added
to the amplifier/loudspeaker combination which
adversely affects the performance. Added resistance
causes reduction of damping characteristics,
modification of frequency response and reduction in
power output.
Use lamp cord or wire with similar type of
insulation to connect the speakers to the amplifier In
MC7100 Product Preview/Page 2
MclNTOSH LABORATORY INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903