105 watts per channel (8 ohms)
150 watts per channel (4 ohms)
300 watts mono (8 ohms)
9270:
135 watts per channel (8 ohms)
200 watts per channel (4 ohms)
400 watts mono (8 ohms)
The 9180/9270Amplifier is equipped with a Thermal Protection
System that constantly monitors the temperature of the heat sinks. When the
heat sink temperature reaches a pre-determined level, the amplifier’s circuitry
is electronically shut down through the same system that provides the Soft Turn-On
function. When the heat sinks cool to a safe operating temperature, normal
operation of the amplifier resumes.
Depending upon which new voltage is chosen, it may be
necessary to change the AC line fuse. Locate the clip-mounted Line Fuse
adjacent to the Voltage Selector plug. Replace the fuse with a new slow-blow
fuse as follows.
9180: 100 and 120 VAC: 7 amp. 220 and 240 VAC: 4 amp
9270: 100 and 120 VAC: 10 amp. 220 and 240 VAC: 5 amp
The 9180/9270 Amplifier employs a single control per channel
to set the bias operating point of the output stage. This bias point is factory
set, and normally should not require adjustment for the life of the product.
However, should improper bias be suspected, or if repairs have been made that would
require a readjustment of bias.
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