Aurora Audio Sidecar, Руководство пользователя, Страница: 18 / 21

Important... always use stereo TRS jack plugs with the TRS panel
mounted jack sockets...
Never plug mono jack plugs into the TRS panel mounted jack sockets.
For best results, always use balanced devices and wiring.
The pre fade insertion return circuitry is electronically balanced and acts similar to a
transformer, accepting balanced or unbalanced signals to the tip and ring contacts of the
panel mounted jack sockets without signal loss or degradation.
Alternatively, the cable mounted TRS plug can be wired unbalanced with hot on the tip
and shield to the shield connection. Don't wire anything to the ring contact of the plug.
The pre fade insertion send circuitry is also electronically balanced and only intended to
drive a balanced load. It has protection against shorting an output to ground but this is
not recommended as a long term application of a short circuit could damage the
amplifier.
Again, the cable mounted TRS plug can be wired unbalanced with hot on the tip and
shield to the shield connection. Don't wire anything to the ring contact of the plug.
Checking alignment levels :-
Channel path -
1. Switch the insertion selector switch to the bypass position.
2. Align the channel gain switch to the 0dB position and adjust the fader such that
the channel is unity gain from the input XLR to the output XLR. An input level of
+4dBu enables the VU meters to be simultaneously checked that they read 0VU.
The fader knob should be very close to the 0dB point on its scale.
3. Switch the insertion selector switch to the in position and plug a TRS stereo jack
plug cable (to male XLR) into the pre-fade insertion send jack socket.
4. Adjust the upper trim potentiometer to give a +4dBu signal out of the pre-fade
insertion jack to the male cable XLR.
5. Plug a TRS stereo jack plug cable (to female XLR) into the pre-fade insertion
return jack socket.
6. Applying a +4dBu input balanced signal to that cable XLR, adjust the lower trim
potentiometer to achieve a +4dBu level coming out of the channel output XLR.
7. If both TRS jack to XLR cables are removed, the Sidecar should still be unity gain
from channel input XLR to channel output XLR.