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ONYX 1220
ONYX 1220
Front Panel Connectors
Besides the channel strip MIC and LINE input con-
nectors, there are some other connectors located on the
front panel for easy access.
38. AUX SEND 1 and 2
These 1/4" TRS output connectors provide balanced
or unbalanced line-level signals for connecting to the
inputs of effects devices or stage monitor amplifi ers.
39. AUX RETURN 1 and 2
These 1/4" TRS input connectors accept balanced or
unbalanced line-level stereo signals from an external
processor or other device. The stereo AUX RETURNS
use jack normalling, like the stereo inputs on channels
5-12. If a signal is plugged into the LEFT (MONO) side
and nothing is plugged into the RIGHT side, the signal is
automatically connected to both LEFT and RIGHT sides.
As soon as something is plugged into the RIGHT side, the
normalled connection is broken and the LEFT and RIGHT
inputs become stereo inputs (LEFT goes to the LEFT
MAIN OUT and RIGHT goes to the RIGHT MAIN OUT).
40. MAIN OUT
These 1/4" TRS output connectors provide balanced
or unbalanced line-level signals. This is the same signal
that appears at the XLR MAIN OUTPUTS (46) on the
rear panel, except 6 dB lower in level. Connect these
to the next device in the signal chain like an external
processor (graphic equalizer or compressor/limiter), or
directly to the inputs of the main amplifi er.
41. TAPE IN/OUT
These RCA jacks are used to connect to the inputs and
outputs of a tape recorder or other recording device.
The TAPE IN jacks accept an unbalanced signal from
a tape recorder or other signal source (could be a CD
player, if you want) using standard hi-fi hookup cables.
The signal is routed to the CONTROL ROOM/PHONES
SOURCE matrix (20). Push in the TAPE button to route
the tape input to the CONTROL ROOM and PHONES
outputs (48/42). This allows you to playback recordings
of your mixes.
Push in the ASSIGN TO MAIN MIX button (21) to route
the tape input to the MAIN OUTs (40/46). This allows you
to playback music between sets over the main PA speakers.
WARNING! Pushing TAPE in the
SOURCE matrix and ASSIGN TO
MAIN MIX can create a feedback
path between TAPE IN and TAPE
OUT. Make sure your tape deck is not
in record, record pause, or input monitor mode when
you engage these switches, or make sure the CONTROL
ROOM level control is turned all the way down.
The TAPE OUT jacks produce an unbalanced signal
that is tapped off the MAIN OUTs. Normally, you would
connect these to the inputs of a recorder, but you can
use them as an extra set of main outputs for feeding
another zone, for example.
42. PHONES
This is where you plug in your stereo headphones. It
is a 1/4" TRS stereo jack and provides the same signal
that is routed to the CONTROL ROOM outputs (48), as
determined by the CONTROL ROOM/PHONES SOURCE
matrix (20). The volume is controlled with the PHONES
knob (23), right next to the CONTROL ROOM knob.
WARNING: The headphone amp
is designed to drive any standard
headphones to a very loud level. We’re
not kidding! It can cause permanent
hearing damage. Even intermediate
levels may be painfully loud with some headphones.
BE CAREFUL!
Always start with the PHONES level (23)
turned all the way down before connecting headphones
to the PHONES jack. Keep it down until you’ve put on
the headphones. Then turn it up slowly. Why? Always
remember: “Engineers who fry their ears, fi nd them-
selves with short careers.”
TAPE
IN
OUT
L
L
R
R
PHONES
RIGHT
LEFT
(MONO)
BAL/UNBAL BAL/UNBAL BAL/UNBAL
AUX RETURN
21
RIGHT
LEFT
(MONO)
21
BAL/UNBAL
AUX SEND
RIGHT
LEFT
MAIN OUT