5
Functions and controls
1. Power terminals: GND (ground), REM, +12V.
2. PHASE
switch
Use this switch to help compensate for time alignment problems in the system. Such
problems usually result from having the subwoofer at a different distance from the listener
than the other speakers in the system.
Changing woofer phase with the PHASE switch (0, 180 degrees).
3. LPF (Low Pass Filter) regulator
This control permits you define the frequency range you want the subwoofer amplifier to
receive. The subwoofer will reproduce all sound BELLOW the frequency you set.
If the rest of your system is weak on the mids, you may wish to set this control relatively
high. If the midrange is well covered by the rest of your system, you will probably want
the subwoofer to only receive lower frequency signal.
Adjust the low-pass crossover (50 – 150 Hz available).
4. BASS BOOST regulator
The bass boost feature will increase the sound level in the bass frequency.
Adjust the frequency of the bass control filter (0 – 12 dB of boost available).
5. GAIN
regulator
After you have installed your system, turn this control to minimum.
Turn the head unit on (and the subwoofer will turn on via the remote connection). Turn the
head unit volume to about 2/3 full level.
Slowly turn up the subwoofer input gain control until you hear a small amount of distortion. Then reduce the level until the distortion is completely
gone. Level the control at this setting.
6. LED
indicator
This bi-color LED glows green when power is on and no problems are present. If one of the protection circuits comes on, it will change to red.
