each channel for the impedance desired. Full power will
be delivered to each properly connected speaker.
When multiple speakers are to be connected to either or
both outputs, the combined load impedance must be calcu-
lated. The load must be connected to the appropriate im-
pedance tap. Use this table to aid in selecting the correct
impedance match:
Load
impedance
in ohms
0.8 to 1.6
1.6 to 3.2
Connect for
1 ohm output
2 ohm output
Load
impedance
in ohms
3.2 to 6.4
6.4 and up
Connect for
4 ohm output
8 ohm output
If a load impedance is used that is lower than the output
impedance tap, then reduced power and possible distortion
will result. If a load impedance is used that is higher than
the output impedance tap, then neither the signal nor the
amplifier will be harmed but the power available is limited.
FOR STEREO OR TWIN AMPLIFIER CONSTANT VOLTAGE
OPERATION:
For output
voltage of Connect for
25 volts 4 ohms
MONOPHONIC OR SINGLE CHANNEL OPERATION
When the MC 2200 is used as a monophonic or single
channel power amplifier the two channels are combined to
produce output up to 400 watts. The outputs must be tied
together at the appropriate load impedance tap. In connect-
ing a load to the MC 2200 for single channel operation
connect the common side of the load to the LEFT CHANNEL
OUTPUT terminal marked COM., the other lead is con-
nected:
FOR MONOPHONIC CONSTANT VOLTAGE LINE
OPERATION
For output
voltage of Connected for
25 volts 2 ohm output (mono)
For multiple speaker operation, run separate leads from
each speaker to the amplifier.
Should the MODE SWITCH be left in the STEREO position
and the output transformers be strapped for a monophonic
load, one channel will attempt to drive the other and cause
circulating currents and overheating. Be certain that the
MC 2200 is never operated in the stereo mode with the
outputs connected for monophonic operations.
AC POWER
The MC 2200 operates on 120 volts 50/60 Hz. The aux-
iliary AC OUTLET on the MC 2200 is not fused or switched.
If the speaker
or load
impedance is
0.5 ohm
1 ohm
2 ohms
4 ohms
The hot side
of the line is
connected to
Left 1
Left 2
Left 4
Left 8
Connect a
jumper
wire between
Left 1 and
Left 2 and
Left 4 and
Left 8 and
Right 1
Right 2
Right 4
Right 8
Do not connect unequal impedance taps together
If the load impedance is between any of the above fig-
ures, select the best impedance match from:
Load
impedance
in ohms
0.4 to 0.8
0.8 to 1.6
Connect for
0.5 ohm output
1 ohm output
Load
impedance
in ohms
1.6 to 3.2
3.2 and up
Connect for
2 ohm output
4 ohm output
5
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