Listening To Your Stereo System; Performance Limits - McIntosh MC 2100 Owner's Manual

LISTENING TO YOUR STEREO SYSTEM

SETTING THE GAIN CONTROLS:
To set the GAIN controls for a stereo system use a
monophonic signal from the program source. A mono-
phonic signal supplies the same voltage to both chan-
nels. Turn the volume control on the source equipment
to the 12 o'clock position {half rotation).
Turn up the LEFT GAIN control until the loudness
Performance Limits are the maximum deviation from
perfection permitted for a Mclntosh instrument. We
promise you that the MC 2100 you buy must be capable
of performance at or exceeding these limits or you get
your money back. Mclntosh is the only manufacturer
that makes this guarantee.
POWER OUTPUT
STEREO: 105 watts continuous, per channel, both
channels operating, which is:
20.5 volts RMS across 4 ohms
29.0 volts RMS across 8 ohms
41.0 volts RMS across 16 ohms
MONO—210 watts continuous, which is:
20.5 volts RMS across 2 ohms
29.0 volts RMS across 4 ohms
41.0 volts RMS across 8 ohms
HARMONIC DISTORTION
STEREO Will not exceed 0.25% at any power level
to 105 watts output per channel from 20 Hz to 20,000
Hz both channels operating. Typical performance is
less than 0.1% at rated power. Distortion decreases
as output power is reduced
MONO Will not exceed 0.25% at any power level
to 210 watts output from 20 Hz to 20,000 Hz. Typical
performance is less than 0.1% at rated power. Dis-
tortion decreases as output power is reduced
INTERMODULATION DISTORTION
STEREO Will not exceed 0.25% if instantaneous
peak power is 210 watts or less per channel with
both channels operating for any combination of fre-
quencies 20 Hz to 20,000 Hz
MONO Will not exceed 0.25% if instantaneous peak
power is 420 watts or less for any combination of
frequencies 20 Hz to 20,000 Hz
FREQUENCY RESPONSE
20 Hz to 20,000 Hz +0 -0.25 dB at rated power
15 Hz to 60,000 Hz +0 —0.5 dB at rated power
10 Hz to 100,000 Hz +0 - 3 . 0 dB at one-half rated
power
NOISE AND HUM
90 dB or more below rated output

PERFORMANCE LIMITS

5
in the room is about as loud as you like to listen. Then
turn the GAIN control on the RIGHT INPUT until it is
equally as loud as the left channel. The system is now
balanced for loudness and provides the greatest range
of operation and loudness change when using the vol-
ume control on the source equipment.
NOW SIT BACK AND ENJOY YOUR MclNTOSH
OUTPUT IMPEDANCE
STEREO 4, 8, and 16 ohms
MONO 2, 4, and 8 ohms
OUTPUT VOLTAGES
25 volts STEREO and MONO
DAMPING FACTOR
20 at 4 ohms output
14 at 8 ohms output
11 at 16 ohms output
INPUT IMPEDANCE
200,000 ohms
INPUT SENSITIVITY
0.5 volt. Level control provided for higher input volt-
age
POWER REQUIREMENTS
120 volts 50/60 Hz, 50 watts at zero signal output
450 watts at rated output
SEMICONDUCTOR COMPLEMENT
32 silicon transistors
14 silicon rectifiers and diodes
MECHANICAL INFORMATION
SIZE: 7% inches high (19.69 cm), 11% inches wide
(29.85 cm), 17 inches deep (43.18 cm)
CHASSIS: Chrome and black.
WEIGHT: 57 pounds (25.86 kg) net, 63 pounds (28.58
kg) in shipping carton
SPECIAL FEATURES
The amplifier is completely stable when connected
to any loudspeaker system or even to any reactive
loads. The MC 2100 has special circuits to prevent
damage by short circuit or open circuit of the output
loads, or by any amount of output impedance mis-
match.
Thermal cutouts are mounted on the output tran-
sistor heat sinks to provide protection in the event of
inadequate ventilation.