ALLEN & HEATH XB-14 User Manual

Allen & Heath 27 XB-14 User Guide
ON ON ON ON ON ON ON ON ON ON ON ON
DISABLE ON SWITCHES
MONO INPUTS
1234
(MAKE PERMANENTLY ON)
T1 T2 1 2 3 4
STEREO INPUTS
LEDs FOLLOW SWITCH
DISABLE STEREO
MUTE CIRCUIT (JAM ON)
BUT
(LED'S ALWAYS ON)
ON ALL 4 STEREO CHs
REMOTE INTERFACE CONNECTORS
External Meter socket
This can be used to feed the main Program PGM L & R signals to external metering equipment. These are line level
analogue signals, the level at 0VU will be 0dBu.
+/- 15V power is also available to power meter circuits, current draw should be kept under 100mA or so.
9 Way D socket connector EXTERNAL METER
PIN FUNCTION
1 +15V POWER
2 -15V POWER
3 GROUND
4 LEFT METER
5 RIGHT METER
6 GROUND
7 GROUND
8 GROUND
9 +10V POWER
Configuration Switches
The tiny slide switches accessible on the rear panel are for configuring the XB-14’s channel ON switches. In the up position,
the channel ON switch will act as a normal ON/OFF switch affecting the channel signal accordingly. If the slide switch is moved
down to the “ON” position, then the corresponding channel’s ON switch will be disabled (made so that it is jammed ON).
The green LEDs in the switch will then permanently illuminate. UNLESS….
Unless you are using the Stereo channel ON switches for transport Start/Cue and would like the channel mute circuit disabled
but the switch illumination still to follow the switch position. In this case use the last switch in the row to disable the mute
circuit on all 4 stereo channels, but make the illumination follow the switch position.
If you want, you can disable the Stereo channel mute circuit on an individual channel basis using the Stereo Inputs 1,2,3 & 4
slide switches individually. This will make the channel permanently on and the switch illumination also permanently on.
This may seem like a fussy complication, but could be useful if you want to revert to basic operation, where only the faders
control the signal going out on air, disabling the ON switches so the operator cannot turn off the channel accidentally, but still
want the switch illumination on certain stereo channels to follow the Start/Cue on the CD player or deck.
ALSO SEE P21 FOR A DIAGRAM TO EXPLAIN THESE SETTINGS.
ON SWITCH OPTIONS
STANDARD OPERATION
OPTIONAL OPERATION

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