a high speed under thermal control. The CON-
TINUOUS HI position makes the fans operate con-
tinuously at high speed whenever the amplifier is
turned on. These two switch positions can be used
for industrial applications or where severe operating
conditions are present. Amplifier reliability is
enhanced by low operating temperatures.
Should the cooling air be blocked or should the
amplifier operating temperature become too high,
thermal cutouts within the amplifier will turn off the
power to the amplifier. The fans will continue to
operate. When the amplifier has cooled it will
automatically turn on again.
AC POWER
The MC 2500 is designed to operate on 120 volts
50/60 Hz. The amplifier draws 15 amperes line cur-
rent when amplifying music or speech at rated out-
put on program peaks. The amplifier uses only 0.7
ampere while idling at no output. If the amplifier is
driven to rated output using sine wave signals it will
draw 22 amperes. The MC 2500 is designed for con-
tinuous and reliable operation at any power level to
its rated 500 watts continuous average power output
per channel or 1000 watts as a mono amplifier. For
continuous sine wave operation the AC source must
be capable of supplying the required 22 amperes.
-11-
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