CONNECTING CABLES
Use High quality connecting cables. Your Mclntosh dealer can advise you on the types
and lengths of cables that will work best in your installation.
The MC1000 has input facilities for both balanced and unbalanced cables. Use one or the
other input, but not both at the same time.
UNBALANCED INPUT
Connect a shielded cable with an RCA type connector, from the output of a preamplifier
or similar accessory unit to the UNBALANCED INPUT on the MC1000.
BALANCED INPUT
It is possible for conventional interconnecting cables to pick-up interference from other
equipment, AC cables or electrical appliances. This is most likely if your system requires longer
cable lengths from the program source to the amplifier input.
When using two MC1000 amplifiers for stereo, each connected to a separate dedicated
AC outlet, there is a possibility of a grounding problem that could introduce a small amount
of hum into the audio circuit. Using Balanced inputs will eliminate the possibility of hum pick-
up. The Balanced inputs provide an additional 40dB of protection against such hum or noise
pick-up.
Use a 2 conductor shielded cable with XLR type connectors. Connect a cable from the
Balanced preamplifier output to the MC1000 BALANCED INPUT.
Pin configuration for the XLR input connector on the MC1000.
PIN 1: Shield or Ground
PIN 2: + Input
PIN 3: - Input
If a second MC1000 is being used in a normal stereo pair configuration, connect
one amplifier for the left channel signal, and the other amplifier for the right channel
in a similar manner.
SPEAKER CABLES
Use high quality speaker cables since this is an important link in your stereo system. Selec-
tion of the proper size and type of speaker cable is necessary for you to receive the best
possible performance from your amplifier and speaker combination. The high power output
capability of the MC1000 requires heavy gauge cable to handle the current requirements.
A size of 14 gauge or heavier is recommended. Your Mclntosh dealer can advise you on the
choice of speaker cables that will work best in your installation.
The Mclntosh MC1000 incorporates the famous Mclntosh designed and manufactured Out-
put Autoformer. The Autoformer insures peak performance and protection, as well as outstan-
ding compatibility between the amplifier and the loudspeaker.
The MC1000 Output Autoformer has three different sets of output impedance connections
for optimum matching to the particular speaker or combination of speakers being used. The
following table will help you determine which impedance connection would be best for your
speaker. It may be desirable to consult your dealer or the manufacturer of your loudspeaker
for further information on the correct impedance.
6
HOW
TO
CONNECT
OUTPUTS
HOW
TO
CONNECT
INPUTS
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