Control Panel Information - McIntosh MC 2100 Owner's Manual

INPUT
The input of the MC 2100 has a two position switch
to permit the amplifier to be used in any one of three
ways:
(1) As a monophonic 210 watt amplifier.
(2) As twin 105 watt amplifiers used with an elec-
tronic crossover network, or as two completely
separate amplifiers.
(3) As a stereo amplifier used with a Mclntosh pre-
amplifier or other high output stereo program
sources.
In either position of the input switch the input sensi-
tivity is 0.5 volts for full rated output. The input im-
pedance is 200,000 ohms.
In the STEREO position each input is controlled by
a GAIN control. The GAIN control allows signal
sources of 0.5 volt up to 30 volts to be connected with-
out overloading the input to the amplifier.
The MONO position of the input switch parallels the
inputs of both amplifiers. When the outputs are prop-
erly connected the MC 2100 becomes a 210 watt mono-
phonic amplifier. The RIGHT/MONO GAIN control per-
mits connecting signal sources up to 30 volts without
overloading the amplifier's input. To operate the MC
2100 as a 210 watt monophonic amplifier the INPUT
switch must be in the MONO position and the OUTPUT
must be properly connected for monophonic opera-
tion.

CONTROL PANEL INFORMATION

OUTPUT
The two barrier terminal strips marked LEFT OUT-
PUT and RIGHT OUTPUT provide stereo connections
for the normal speaker impedances of 4 ohms, 8 ohms,
and 16 ohms, or monophonic operation connections
for 2 ohms, 4 ohms, and 8 ohms. The terminal strips
may also be connected for a constant voltage output
of 25 volts in either stereo or mono.
OUTPUT (Octal Socket)
The octal socket marked OUTPUT has stereo con-
nections for 4 ohms, 8 ohms, 16 ohms, and 25 volts.
For monophonic operation the octal socket provides
connections for 2 ohms, 4 ohms, 8 ohms, and 25 volts.
FUSE
The MC 2100 uses a 5 ampere slo-blo type fuse. The
auxiliary AC outlet is not fused.
AC OUTLET
The auxiliary AC outlet can be used to supply power
to other equipment in the system. The outlet will pro-
vide a maximum of 300 watts of power. The AC outlet
is not fused.
LINE VOLTAGE
The MC 2100 operates on any line voltage between
117 volts and 130 volts, 50 to 60 Hz.
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