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 amplifiers.

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 amplifier.

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, find themselves with short careers.”

BAL/UNBAL

BAL/UNBAL

BAL/UNBAL

BAL/UNBAL

 

 

 

 

L

L

 

 

 

 

 

 

IN

 

OUT

1

2

LEFT

1 RIGHT

LEFT 2 RIGHT

LEFT

RIGHT R

 

R

 

 

(MONO)

 

(MONO)

 

 

 

 

AUX SEND

 

AUX RETURN

MAIN OUT

TAPE

PHONES

18

ONYX 1220