Mackie 1620i XLR MAIN OUTPUTS, MAIN OUTPUT LEVEL (+4 dB/MIC), ASSIGN to FW, TAPE OUT, 1/4" TRS MAIN OUTPUTS, MAIN MIX FADER

Main Mix

XLR MAIN OUTPUTS

The male XLR output connectors provide a balanced line-level signal that represents the end of the mixer chain, where your fully mixed stereo main mix signals enter the real world. Connect these outputs to the inputs of your main power amplifiers, powered speakers, serial effects processor, graphic equalizer, or compressor/limiter. The output provides a fully balanced signal playing the same program material as the 1/4" TRS main outs.

MAIN OUTPUT LEVEL (+4 dB/MIC)

When this recessed switch is out (+4 dB), the XLR main outputs provide a "+4 dBu" line-level signal. You can then connect these outputs to the line-level inputs of power amplifiers, powered loudspeakers, or serial processors. In a studio setting, you could connect the main mix to the inputs of a professional stereo recorder.

When the switch is pushed in (mic), the XLR main outputs are attenuated to microphone level. You can then connect these outputs safely to the microphone inputs of another mixer, providing a submix for keyboards or drums, for example, in a live sound application. The main outputs can then be plugged directly into a stage snake, and appear back at the front of house console like any other microphone level source.

When mic is engaged, you can safely plug the XLR main output into another mixer's microphone input, even if it provides 48 V phantom power.

The switch is recessed to reduce the chance of accidently turning it on or off when plugging things in.

ASSIGN to FW 15-16

Engage this button (just above the main mix fader) and the main mix can be sent to your computer via FireWire. The FireWire output is not affected by the main mix fader, allowing you to record the main mix of live performances. The left main mix will appear on FireWire output signal 15, and the right on signal 16. (When this button is engaged, mixer channels 15-16 are not available to send via FireWire.)

In addition to recording the main mix using FireWire, you can record individual mixer channels 1-14 using FireWire, for studio mixing at a later date. See page 15.

TAPE OUT

This RCA unbalanced output is a copy of the main mix (post fader). You can use it to record the main mix on an analog tape deck for example.

XLR Main Outputs

Main Output Level +4dB/Mic

1/4" TRS Main Outputs Tape Out

1/4" TRS MAIN OUTPUTS

These 1/4" TRS output connectors provide the balanced or unbalanced line-level output of the main mix. This is the same signal that appears at the XLR main outputs, except it is not affected by the main output level switch.

MAIN MIX FADER

This is the main stereo fader that adjusts the level of the XLR and 1/4" main outputs, and the tape output. It does not affect the FireWire output of the main mix.

If the gain of each channel has been set up correctly for all your microphones, line-level sources, guitars, and so on, then these channels can be added to the main mix by careful adjustment of the channel faders. The main mix fader is then used to turn the complete main mix level up and down.

48V 48V 48V 48V 48V 48V 48V 48V

MUTE	MUTE	MUTE	MUTE	MUTE	MUTE	MUTE	MUTE	MUTE	MUTE	MUTE	MUTE
SOLO	SOLO	SOLO	SOLO	SOLO	SOLO	SOLO	SOLO	SOLO	SOLO	SOLO	SOLO

Assign to

FW 15-16

Main Mix

Fader

12Onyx 1620i