ALLEN & HEATH XB-14 User Manual

Allen & Heath 25 XB-14 User Guide
L
+16
-6
-9
-20
-30
-16
-12
-3
0VU
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX
MIX B
EXT
CRM
SPEAKERS
L
R
48V
INSERT R
MAIN
PHANTOM POWER
ALLEN HEATH
AUX
INSERT L
+16
-6
-9
-20
-30
-16
-12
-3
0VU
+3
+6
+9
CUT SPKS
DIM SPKS
TO MICS
PFL ENABLE
TO GUEST
GUEST PHONES 1
GUEST PHONES 2 CRM PHONES
EXT MON IN
L
R
0
5
10
15
20
MIN MAX
CRM
TALK
TO GUEST
POWER
MIX B OUT
L
R
MIN MAX
LEVEL
MIX B
PGM MIX
FADER
CRM+PHONES
SELECTION
USB
PHONES
MIN MAX
GUEST
GUEST PHONES
SELECTION
MIC FADER UP
=CUT SPKS
MONO
OUT
IN
MON
OUT
&
PGM
MASTER SECTION
14
CRM Speakers level
Adjusts the level of the signal to the control room speaker outputs
from off (fully attenuated) to unity gain.
14
15
DIM & Cut CRM Speakers
The Dim switch reduces the level of the control room speakers by
20dB.
The Cut CRM Speakers LED illuminates red when the control room
speakers mute circuit is activated, either by external switching using
the remote interface or by raising any one of the mono channel fad-
ers (if the MIC FADER UP switch has been pressed).
15
16
MIC FADER UP =CUT Speakers
An under-panel switch to enable the fader start logic switching to cut
the control room speaker outputs. This is useful when the CRM
speakers are in close proximity to the microphones plugged into the
mono channels and acoustic feedback may occur from the speakers
to the microphones.
Press the switch to enable the automatic muting.
16
17
18
19
20
17
Control Room Phones level
Adjusts the level of the operators’ control room headphones from off
(fully attenuated) to maximum. The headphone amplifier has a gain of
12dB.
18
Guest Phones level
Adjusts the level of the guests’ headphones from off (fully attenuated)
to maximum.
Each headphone output socket has a dedicated amplifier with a gain
of 12dB.
19
MIX B level
This is the master level control for the MIX B stereo bus output.
The range of adjustment is from off (fully attenuated) to unity gain.
20
Program Mix Fader
The main program mix level control. Affects the stereo PGM output,
but not the mono PGM output.
0dB, or unity gain is at the top of the fader.

ALLEN & HEATH XB-14 Specifications

Operating Levels

Mono channel Mic input range	+6 to –63dBu
Mono channel Line input range	+10 to –26dBu
Insert point nominal level	0dBu
Stereo input nominal level	0dBu
Telco channel input range	+10 to –26dBu
External monitor inputs nominal level	0dBu

Output Levels

PGM L & R outputs nominal level	+4dBu
PGM Mono output nominal level	0dBu
PGM L & R inserts nominal level	-2dBu
Aux output nominal level	0dBu
Mix B outputs nominal level	0dBu
Rec outputs nominal level	0dBu

Audio Performance

THD+n Mic in to PGM L/R Out	0.003%
THD+n Mic in to PGM Out	0.007%
THD+n Line in to PGM L/R out	0.004%
THD+n Stereo in to PGM out	0.003%
Noise Mic Pre EIN	-127dBu
Noise PGM out	-92dBu

Frequency Response

Mic in to PGM L/R Out	20Hz to 20kHz
Line in to PGM L/R out	10Hz to 30kHz
Stereo in to PGM L/R out	10Hz to 30kHz

Headroom

Analogue Headroom Outputs	21dB
USB in & out headroom	14dB
Analogue Headroom Mix point	24dB

Crosstalk & Attenuation

Mono fader attenuation 1kHz/10kHz	-99/-90
Mono ON switch attenuation 1kHz/10kHz	-96/-80
TELCO fader attenuation 1kHz/10kHz	-99/-92
TELCO ON switch attenuation 1kHz/10kHz	-102/-100
Stereo fader attenuation 1kHz/10kHz	-100/-91
Stereo ON switch attenuation 1kHz/10kHz	-102/-102