Burst Electronics AS4x1 - Manual (Page 3)

1 AS4x1 Audio Switch
Overview
The Burst Electronics Model AS4x1 Audio Switcher is a
Four-channel stereo audio (unbalanced) switcher with built-
in monitor amp and speaker. The input and output
connectors are Phono (RCA) type. The output is selected
by the appropriate front panel channel switch. An LED
indicates the active channel. The input gain is unity. The
volume control affects the monitor speaker and the front
panel monitor jack only. The Model AS4x1R (R signifies
Remote Control) includes a RS232 interface.
Power
Power is from the supplied 12 Vdc wall adapter. The AS4x1
may also be powered from an external 12 Vdc source. The
dc power input has an autopolarity feature. You must feed it
dc (not ac), of either polarity.
Operation
Select the input by pressing the appropriate input channel
switch. The LED for that switch will illuminate. Upon power
up, the AS4x1 defaults to channel one.
The channel LED also acts as a peak or clip indicator.
When the input signal is at +12 dB (ref to 0 dBm), the
peak/clip LED will flash.
Four Input Audio Switcher