Marshall Electronics AR-AM4-BG User Manual download pdf (Page 7)

Front Panel Features

Stereo Loudspeakers

The stereo loudspeakers are controlled by the Master

Volume Control. The sound from the selected source

will be heard.

Power Indication LED

The power LED will illuminate green when power is

supplied to the audio monitor.

Headphone Output

The headphone output accepts stereo headphones

with a 1/4" TRS connector. When headphone plug is

inserted, MUTE is activated and sound to the

speakers is cut.

Headphone Volume Control

The headphone volume control affects only the stereo

headphone jack.

Input Select

Rotate knob to switch between input channels 1

through 4. This selects the input source for both the

speakers and headphone jack.

Master Volume Control

The master volume control affects only the stereo

speakers.

Balance Control

The balance control adjusts the relative level of each

left and right input to the speakers and headphones.

USB Port

For factory and future use only at this time.

Mute Button

Press to silence the speakers. The LED will light to

indicate MUTE. (Headphone jack remains active)

Phase LED

Will indicate the wiring polarity of incoming audio

comparing left to right. GREEN color indicates

Left+Right is IN Phase. RED indicates a 180 Degree

Phase Error between Left and Right of the selected

input.

LED Bargraph Level Meter

Dual 10-segment LED display of selected audio

source.

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Marshall Electronics AR-AM4-BG User Manual Page 7