4 GAIN CONTROL
These
two knobs are the level controls for each chan-
nel
of the amplifier. The gain increases as the knob
is
turned clockwise. This unit features detented
gain
controls.
5 POWER SWITCH
Although
the XP series amplifiers feature power-on
muting,
it is always a good practice to reduce both
the
gain controls before turning on the amplifier. The
powering-up
procedure for an audio system should
start
from instruments and then mixer, and you
should
verify that all system operations are normal
be
fore turning on the amplifier.
6 SUBWOOFER SWITCH (XP2100/3100 ONLY)
NORMAL/60/90/120H
z
Switching
from normal to either 60Hz, 90Hz or 120Hz
setting
will add the dedicated low pass filter to the out-
put
path, which offers you a sub bass output to achieve
a 3-way or more ways speaker system. When you
activate
this function, you will get the subwoofer fre-
quency
output below 60Hz, 90Hz or 120Hz only.
7
DISPLAY
When
the power is on, the PHONIC logo at the top of
the
front panel will light up in green.
When
the amplifier is switched to the bridge mono mode,
the
bridge LED right next to the PHONIC logo will light
up
in red.
When
the amplifier is switched to the parallel mode,
the
parallel LED next to the bridge LED will light up in
yello
w.
7
XP 600/1000/2000/2100/3000/3100