Operating instructions

Rear Panel
1. VOLUME CONTROL
This knob is designed for the
volume level adjusting. Please pay
attention: The lowest input sensitivity
level which can be set is -30dB.
2. LOW PASS CONTROL
This knob controls crossover’s
frequency and allows to move
crossover point between 50Hz and
130Hz.
3. PHASE
This switch inverts the phase of the
audio signal. If the switch is set to the “0”
position the audio signal phase is not
adjusted. If the switch is set to the “180”
position the audio signal is inverted.
4. LINE IN
Line level Stereo RCA input.
5. LINE OUT
Line level Stereo RCA output.
6. TRS JACK INPUT
Line level 6.3 mm balanced jack
stereo input.
7. LINE LEVEL XLR INPUT
Line level balanced XLR input.
8. LINE LEVEL XLR OUTPUT
The audio signal in this balanced
XLR output is linked from internal
crossover’s high pass section, so
frequency response of this output is in
depended from crossover’s setting.
9. GROUND LIFT SWITCH
Ground lift switch is used to
eliminate or reduce noise caused by
ground loops. Set the switch to or
position depending on your
situation.
marking means that audio signal
ground is disconnected from chassis
ground.
marking means that audio signal
ground is connected to chassis
ground.
10. MAIN POWER SWITCH
By using this switch subwoofer can
be turned on and turned off.
11. MAIN POWER SOCKED AND FUSE
This socked is designed for main
powers connecting to amplifier. Please
note this connector is combined with
fuse holder and 2A, 250V fuse