ALLEN & HEATH ZED436 User's Guide download pdf (Page 15)

Allen & Heath 15 ZED-4 BUS User Guide

MONO INPUT CHANNEL

Microphone Input Socket

Standard 3-Pin XLR socket wired as Pin 1=Chassis, Pin 2=hot (+),

Pin 3=Cold (-).

Line Input Jack Socket

Standard 1/4” (6.25mm) Jack socket for balanced or unbalanced line

level signals. Wired Tip=Hot(+), Ring=cold (-), Sleeve=Chassis.

The Line input overrides the Mic input, so if you want to hear some-

thing plugged in to the xlr socket, make sure nothing is plugged into

the Line input.

Insert Jack Socket

Standard 1/4” (6.25mm) Jack socket for unbalanced insert send and

return signals. Wired Tip=send, Ring=return, Sleeve=Chassis.

Nominal level is 0dBu. The insert point is after the 100Hz filter and

before the EQ.

Gain Control

This adjusts the gain of the input amplifier to match the signal level

of the input. The gain is varied from –6dB (attenuation) to +63dB

for signals plugged in to the xlr socket (Mic Input) and –10dB to

+26dB for signals plugged into the Line input jack.

100Hz Hi-pass Filter

The Hi-pass filter is used for reducing pop noise and rum-

ble from microphone signals. It is a 2-pole (12dB per oc-

tave) filter with a corner frequency set at 100Hz.

The filter affects signals from both Mic XLR and Line jack

socket.

10.00 Hz 100.00 1000.00 10000.00 30000.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

dBr

48V Phantom Power Switch

Applies +48V to pins 2 and 3 of the XLR input though 6k8 resistors

for phantom powered condenser microphones.

MIC

INSERT

LINE

-6-10 63 26

GAIN

MIC

LINE

DIR OUT

48V

HPF

100Hz

Direct Output Socket

Standard 1/4” (6.25mm) Jack socket. Wired Tip=Hot(+),

Ring=cold (-), Sleeve=Chassis. For recording individual channels,

factory default is prefade signal (post mute).

The nominal level is 0dBu and the output is impedance balanced.

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ALLEN & HEATH ZED436 User's Guide Page 15

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