Allen & Heath
25
XONE:DB4 User Guide
SETUP MENU
RECORD SETUP
Trim:
Sets the signal level of the analogue record outputs
and
the Digital
Output. 0.0dB corresponds to a nominal output level of +4dBu when the
main meters read 0VU. This is an ideal level to feed power amplifiers or in-
terface with pro audio equipment, but is too high for most recording devices,
(minidiscs etc) so use this control to attenuate the output level by up to
40dB.
Source:
There are three options available; Mix, Cleanfeed, or Phones. Mix
will send the same signal to the record out as to the main mixer outputs,
Cleanfeed will send the Mix output less the signal from the Mic channel, and
Phones will send the headphone monitor signal. The Digital output will also
be affected by any routing changes made here.
BOOTH SETUP
Trim:
Sets the signal level of the Booth outputs. 0.0dB corresponds to a
nominal output level of +4dBu when the main meters read 0vU. This is an
ideal level to feed power amplifiers or interface with pro audio equipment. If
the Booth level is too high, it can be attenuated by up to 40dB.
Phase:
Allows you to reverse the signal Phase of the Booth output. The
DB4 is phase coherent, i.e. the signal phase of the output is the same as the
input, however in some installations acoustic reflections can create a phase
cancellation between the booth monitors and the main PA. This often results
in loss of bass frequencies, so try reversing the Booth phase to see if it im-
proves the fidelity of the system.
Source:
There are three options available, Mix, Cleanfeed, or Phones. Mix
will send the same signal to the record out as to the main mixer outputs,
Cleanfeed will send the Mix output less the signal from the Mic channel, and
Phones will send the headphone monitor signal.
MIX SETUP
Trim:
Sets the signal level of the Main Mix outputs. 0.0dB corresponds to a
nominal output level of +4dBu when the main meters read 0vU. This is an
ideal level to feed power amplifiers or interface with pro audio equipment. If
the Mix level is too high, it can be attenuated by up to 40dB.
Phase:
Allows you to reverse the individual left/right signal Phase of the
Main Mix outputs. This control can also be used as a temporary fix for
wrongly wired balanced cables or speaker systems
Normal means that the mixer is Phase coherent, i.e. the output signal is the
same phase as the input.
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