ALLEN & HEATH GLD User's Guide download pdf (Page 16)

Qu-16 User Guide 16 AP9031 iss.2

Channel Preamp source

Local (red Gain) – Rear panel Mic/Line sockets

feeding the internal Qu mixer preamps. These are pad-

less preamps featuring wide gain range.

dSNAKE (yellow Gain) – Remote preamps located in

an AR2412 or AR84 AudioRack on stage or other

remote location and connected to the Qu dSNAKE

port via a Cat5 cable. These preamps include Pad

switching.

Channel USB source

Qu-Drive source (dark blue Gain) – Stereo or

multitrack playback from a USB hard drive plugged

into the top panel Qu-Drive port. Provides a +/-24dB

Trim control.

USB B source (light blue Gain) – Multi-channel

streaming from a Mac computer via the rear panel

USB B port. Provides a +/-24dB Trim control.

The panel USB Select key in the Preamp control

section switches between the current Preamp source

(Local or dSNAKE) and the current USB source (Qu-

Drive or USB B).

Phantom Power

Turn on 48V if the connected device requires phantom

power, for example a condenser microphone or active

DI box. Touch and hold for 1 second to toggle on or

off. This prevents accidental operation.

Note - To prevent audible thumps make sure the

channel is muted before switching 48V on or off.

Gain

Turn up Gain so that the average loud signal reads

into the yellow of the meter. Turn down if any red peak

light flashes.

Polarity

Touch Ø to reverse the polarity of the input signal, for

example that of the lower mic when working with two

microphones on a snare drum.

Other functions in the Preamp section

Insert switches an internal FX in or out if one has been

patched into the channel. The button is disabled when

the insert is not patched. The FX is inserted between

the preamp and EQ.

Use the FX / Back panel screen to choose and assign

one of the 4 internal FX as an Insert into a channel.

Delay up to 85ms can be added to each input

channel. In most cases delay is not needed, but can

be useful in time aligning sound from the PA to the

acoustic sound from an instrument on stage. Allow

1ms per foot distance as a starting point.

HPF GATE PEQ COMP

DELAY

Gain/Trim

Insert

Post-Preamp Pre-EQ Post-EQ Post-All

Gain

 

Peak

Local (red Gain) dSNAKE (yellow Gain)

Qu-Drive (dark blue Gain) USB B (Light blue Gain)

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ALLEN & HEATH GLD User's Guide Page 16

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