Gain Controls; Signal, -20 Db, -10 Db, And Clip Led Indicators - QSC PowerLight 6.0 II User Manual

USE- Gain Controls

Gain Controls

A Gain control adjustment is provided for each
channel.
The voltage gain of the amplifier (in dB) is
marked around each control.
Rotating the control clockwise increases the gain
of the amplifier. Rotating the control counter-
clockwise reduces the gain of the amplifier.
In Stereo and Parallel operating modes (see p.10)
each channel's gain is adjusted by its respective
control. In Bridge mode, use channel 1's gain
control; channel 2's control is ignored in bridge
mode.
USE- Signal Level LED Indicators
Signal Level LED Indicators
Between the Gain controls are eight LEDs indicating input signal level to the amplifier.
The left column indicates channel 1's input levels. The right column indicates channel
2's input levels. Each channel's LEDs operate independently.
SIGNAL- Illuminates when the input signal strength is sufficient
to drive the output above -40 dB relative to full output.
-20 dB- Illuminates when the input signal strength is sufficient to
drive the output above -20 dB relative to full output.
-10 dB- Illuminates when the input signal strength is sufficient to
drive the output above -10 dB relative to full output.
CLIP- Illuminates when the input signal strength is sufficient to
drive the output to the power supply rails (i.e. clipping).
20
LED indicators.