American Audio V4000 plus manual Front Panel Control, Diagram

Front Panel Control

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MONO STEREO BRIDGE

POWER	LIMITER		LIMITER
	ON	OVER HEAT	ON
ON		PROTECT
		CLIP
		-5dB
		-10dB
OFF		-15dB
0	10	SIGNAL	0	10

PROFESSIONAL POWER AMPLIFIER

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1.Power Switch - This switch is used to control the units main power.

2.Channel 1 Gain Control - This rotary knob is used to control the out- put signal of channel one. Turning the knob in a clockwise direction will increase signal output.

3.Channel 1 Limiter Switch - This is used to activate the channels built-in limiter. The limiter reduces the average input level when the sig- nal begins to distort, this process is designed to reduce distortion and protect the speakers. See limiter page 12.

4.Channel 1 Clip Indicator - This red LED will begin to fl ash when channel one begins to overload (clip). At this point channel one will be- gin to distort. Under heavy clipping activity lower the channel one gain control to reduce the risk of damage to your speakers and amplifi er. This LED may glow when the unit has been turned off, this is normal.

5.Channel 1 Protect Indicator - The red Protect LED will begin to glow when the channel goes into protect mode. When the channel goes into protect mode all output for that channel will turn off. This is to protect any speakers connected to the channel.

6.Channel 1 Overheat Indicator - This indicator will begin to glow when the channel goes into thermal protection mode. When the unit goes into thermal protection, channel output will turn off. See “Thermal Protection” page 13.

7.Channel 1 Signal Indicators - These green and yellow LED’s will glow according to the average signal output.

Diagram 1

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8.Function Indicators - These indicators detail the operating mode of the amplifi er. These LEDs will also function as a power indicator.

9.Channel 2 Overheat Indicator - This indicator will begin to glow when the channel goes into thermal protection mode. When the unit goes into thermal protection, channel output will turn off. See “Thermal Protection” page 13.

10.Channel 2 Protect Indicator - The red Protect LED will begin to glow when the channel goes into protect mode. When the channel goes into protect mode all output for that channel will turn off. This is to pro- tect any speakers connected to the channel.

11.Channel 2 Clip Indicator - This red LED will begin to fl ash when channel one begins to overload (clip). At this point channel one will be- gin to distort. Under heavy clipping activity lower the channel one gain control to reduce the risk of damage to your speakers and amplifi er. This LED may glow when the unit has been turned off, this is normal.

12.Channel 2 Limiter Switch - This is used to activate the channels built-in limiter. The limiter reduces the average input level when the sig- nal begins to distort, this process is designed to reduce distortion and protect the speakers. See limiter page 12.

13.Channel 2 Gain Control - This rotary knob is used to control the output signal of channel two. Turning the knob in a clockwise direction will increase signal output.

14.Channel 2 Signal Indicators - These green and yellow LED’s will glow according to the average signal output.

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