Phonic XP 600 User Manual page 7

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
before turning on the amplifier.
XP 600/1000/2000/2100/3000/3100
6 SUBWOOFER SWITCH (XP2100/3100 ONLY)
NORMAL/60/90/120Hz
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
yellow.
7