Allen&Heath XB-10 - Manual (Page 15)

Allen & Heath 15 XB-10 User Guide
MONO INPUT CHANNEL
Mic 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 connects to the XLR input via a pad, so be aware
that the two signals will add together if both inputs are plugged in
simultaneously.
Gain Control
This adjusts the gain of the input amplifier to match the signal level
of the source. The gain is varied from +10dB to +60dB for signals
plugged in to the XLR socket (Mic Input) and –10dB to +40dB for
signals plugged into the Line input jack.
Compressor
This enables the compressor which is optimised to reduce the dy-
namic range of a presenter microphone. Low level signals are given
a 10dB gain boost, Soft knee compression activates at -20dBu. High-
er level signals are limited.
The LED gives an indication of the amount of compression by mod-
ulating with the signal level.
100Hz Hi-pass Filter
The Hi-pass filter is used for reducing pop noise and
rumble from microphone signals. It is a 2-pole filter with
a corner frequency set at 100Hz.
The filter affects signals from both Mic XLR and Line jack
socket.
Line
- 10 10
20
40 60
30
HPF
Mic
0
GAIN
L
COMP
G
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
-50.00 dBu -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00
-50.00
-40.00
-30.00
-20.00
-10.00
0.00
10.00
dBu