Crest Audio X-Four Owner's Manual page 9

features
gain
The Input gain control range is closely related to the status of the
switch and the switch. In order to establish proper gain structure in
LINE
the console, input gain settings must be set correctly.
—switch-up
LINE
15 to 75dB of gain can be added the mic-input signal.
The impedance at the input XLR is 4kΩ.
—switch-up
LINE
-5 to 55dB of gain can be added to the mic-input signal.
The impedance at the input XLR is 4kΩ.
—switch-down
LINE
-10 to 45dB of gain can be added the line-input signal.
The impedance at the input XLR and input 1/4" TRS is 20kΩ.
high-pass filter—HPF
Proper use of the high-pass filter reduces or eliminates unwanted low fre-
quencies without substantially affecting the program material. Quite often
such unwanted low frequencies are included with in-coming mic- or line-
input signals. For example, stage rumble or wind can be picked up through
vocal mics.The slope of the high-pass filter is 12dB per octave.
HPF
High-pass filter is on
—switch-up
PAD
—switch-down
PAD
—switch-up or -down
PAD
80 Hz, 12 dB/octave
@
mono input module
PAD
If the channel peak
LED is illuminated,
first try lowering
the input gain control.
Only when this method is
unsuccessful should the pad
switch be engaged.
1
+
p. 9