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The VAR1 is a relay device that monitors audio activity over a wide range of input
voltages and operates two sets of C-Form relay contacts in response to detected
activity. The VAR1 can be used to detect voltages as low as signals directly from
a microphone or as high as signals from 70V speaker systems. A low level output
of the detected audio, transformer-isolated from the input, is also made available
for use with other equipment. Can also be used as a balanced low-impedance mic
pre-amp. - Two sets of C-Form (both N.O. and N.C.) relay contacts respond
to audio activity
- 4 levels of input signals: microphone, 600-ohm line,
25V, and 70V speaker systems
- Built-in balanced, low noise, high gain
microphone pre-amp
- A transformer-isolated, 600-ohm small signal level
output of detected audio available
- Works with self-amplified or central
amplifier paging systems
- Separate microphone pre-amp gain control
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Adjustable release delay “ 0.25s to 25s
- Trigger threshold adjustment
- Relay active indicator light
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