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Owner's Manual 13

The line-level inputs of channels 1 and 2 can also

accept instrument-level signals if the hi-z switches

[18] are pressed in. This allows you to connect guitars

directly to channels 1 and 2, without the need for a DI

box. The input impedance is optimized for direct

connection, and high-frequency ﬁdelity is assured.

11. STEREO LINE INPUTS (Ch. 9-16)

These 1/4" jacks can be driven by balanced or

unbalanced sources.

To connect balanced lines to these inputs, use a 1⁄4"

Tip-Ring-Sleeve (TRS) plug, wired as follows:

Tip = Positive (+ or hot)

Ring = Negative (– or cold)

Sleeve = Shield or ground

To connect unbalanced lines to these inputs, use a

1⁄4" mono (TS) phone plug, wired as follows:

Tip = Positive (+ or hot)

Sleeve = Shield or ground

If you just have a mono source, plug it into the left

input (labeled left/mono), and the signal will appear

(as if by magic) equally on the left and right of the main

mix.

12. CTRL-RM OUT

These 1/4" TRS jacks provide balanced left and right-

line-level outputs

to run studio monitors in the control

room.

Connecttheseoutputstotheinputsofan

ampliﬁer, powered speakers, or recording device.

The source that plays in the control room,

headphones, and meters can be selected using the

switches [37, 38] in the control room/phones source

matrix:

• Themainmix,ifmainmixisselectedasthe

control room/

phones source

• Tapeoutputs,iftapeisselected

• Alt3-4outputsifalt3-4isselected

• A2-trackFireWirefeedfromyourcomputerif

FW 1-2 is selected

• Acombinationofallfourabove

Except for main mix, whatever is playing in these

outputs can also be routed to the main mix if assign to

main mix [39] is engaged. (The main mix input to the

control room is disconnected if assign to main mix is

engaged.)

The headphones and meters play the same program

as the control room. The meters show the levels prior to

the control room and phones level controls.

13. LEFT/RIGHT 1/4" MAIN OUTPUTS

These 1/4" TRS output connectors provide the

balanced or unbalanced line-level output of the main

mix to an anxiously-waiting world. This is the same

signal that appears at the XLR main outputs [4] on the

rear panel, except it is not affected by the main output

level switch [5].

Connecttheseoutputstothenextdeviceinthesignal

chain, such as an external processor (graphic equalizer

or compressor/limiter), external power ampliﬁers

running passive loudspeakers, or to the inputs of

powered loudspeakers. They could also be connected to

the inputs of a balanced 2-track recorder, when doing a

"live to 2-track" type recording.

14. ALT 3–4 OUT

These 1/4" TRS jacks provide a balanced line-level

signal that can provide an alternate stereo mix for

recordingorsu/jointfilesconvert/289149/bgrouping.Connecttheseoutputstothe

inputs of an ampliﬁer, powered speaker, or recording

device.

Any channel whose mute switch [33] is engaged, is

added to the alt 3-4 outputs.

The alt 3-4 output doesn’t have a master level control.

All the channels assigned to the alt 3-4 bus are summed

together (post-fader and pan) and sent directly to the

alt 3-4 out.

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 39 40

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