features overview

CPXTM owner’s manual

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front panel switches and controls

1 AC Power Switch/Circuit Breaker

The CPX Series amplifiers have a combination AC switch/circuit breaker on the front panel. If the switch shuts off during normal use, push it back to the ON position once. If it will not stay on, the amplifier needs servicing.

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The power only breaks one side of the AC mains. Hazardous energy may be present in the enclosure when the power switch is in the OFF position.

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2 Input Attenuators

Whenever possible, set the attenuators fully clockwise to maintain optimum system headroom.The input attenuator controls located at the front panel, (one for channel A, one for channel B), adjust gain for

their respective amplifier channels in all modes. See the specifications at the end of this manual for standard voltage gain and input sensitivity information.

When operating in the bridged mode, both attenuators must be in the same position so the speaker load will be equally shared between the channels. See the section on Bridged Mono operation for more information and precautions.

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Crest Audio CPX 3800 owner manual Front panel switches and controls, AC Power Switch/Circuit Breaker, Input Attenuators