APart PREZONE1 [8/16] Preamplifiers

Preampliﬁers

1. Emergency input: connect your balanced 0 dBV line level

emergency input audio signal to the euroblock connector. If

available, connect the emergency contact to the “mute all”

connection. The contact must be “potential free”, i.e. a relay

or switch contact that does not carry any voltage. Alternatively,

activate the “vox” circuitry by turning the vox control until you

hear an audible “click”. Now turn the vox control up while

playing music until the vox circuit is activated. The vox and

the mute all switch have the same function: they will mute all

other sources, and will wake up the unit from standby (auto

standby and front button standby). The emergency level can be

set with the volume control. If the clip led lights up when the

emergency signal is present, lower the level of the emergency

signal at the source to avoid distortion.

Connections

3 5 9

4 6 8