Resetting the Switcher, Clipping indicator | Extron electronic PVS 204SA

Clipping indicator

The clipping LED is a real time indicator of when the amplifier is clipping. It flashes red when clipping is taking place (see figure 3-7).

AUDIO
AUX/MIX	LEVEL
MIN/MAX	CLIP	This LED flashes when the
		This LED flashes when the
		amplifier output is clipping.

Figure 3-7 — Front Panel audio clipping indicator LED and recessed encoders

NTo reduce the risk of damage to the speaker, reduce the amplifier level by turning the encoder counterclockwise until the Clip LED turns off.

Bass, treble, and loudness control

For optimum audio quality, the audio input levels and the bass, treble, and loudness controls must all be set up properly. Input audio levels may need to be adjusted depending on the variation of the output levels from different source devices.

NBy default these levels are set for the consumer product level of ‑10 dBV.

Bass and treble should be adjusted once the input and output levels have been adjusted. These are adjusted by RS-232 control only, with a range from -10 dB to +10 dB. By default the bass and treble have been set at 0 dB. See chapter 4, “Serial Communication”, for details on RS-232 control.

The loudness on/off (default off) switch and the clip limiter on/off (default off) function are also controlled by RS-232.

Aux/Mix control

The Aux/Mix input is line level mono. It is divided into two matching channels and then summed with the main left and right channel audio inputs. Aux/Mix volume is independent of other input gains, power amp gain, and volume. The recessed encoder has 20 detents (steps) per revolution, each step making 1 dB change. The Aux/mix range is from -18 dB to +24 dB, default is 0 dB.

NWhen the minimum (-18 dB) or the maximum (+24 dB) is reached, the min/max LED (see figure 3-6) flashes red.