Crown Audio 160MA operation manual Setup, page, Ab C D E, Commercial Audio Series Mixer-Amplifiers

Commercial Audio Series Mixer-Amplifiers

2 Setup

1.2Front Panel Controls and Indica- tors

A.Input Signal Presence/Clip Indica- tors: Green LED, one above each channel's volume control, illuminates when input signal exceeds –40 dBu, or flashes brightly at threshold of audible distortion.

B.Master Output Volume Control: Detented potentiometer with knob.

C. Output Signal Presence Indicator: Green LED above master output volume control illuminates when any input signal exceeds –40 dBu.

D. Output Signal Clip Indicator: Red LED above master output volume control flashes brightly at threshold of audible distortion.

E. Power Indicator: Blue LED indicates

power on.

F. Input Volume Controls: One per input, detented potentiometers with knobs. Four controls in 160MA; three controls in 135MA.

G. Tone Controls: Bass and Treble non- detented recessed potentiometers under master output volume control. Bass ±10 dB at 100 Hz, Treble ±10 dB at 10 kHz.

H.Power Switch: Pushbutton on-off switch.

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Figure 1.1 Front Panel Controls and Indicators
page 6		Operation Manual