Filter
Top Products
P
(such as 100-120 Hz) than you would with larger speakers which have
greater low frequency output. With larger speakers, you might start with
this control set lower, such as 80 Hz.
A bypass switch is also provided if you wish to use an external
crossover. If you are not using an external crossover, we
recommend that you use the one provided within the unit for
optimum performance!
Phase Adjustment - 0°/180°
This control allows you to “reverse” the phase of the subwoofer’s output
signal 180° to correct for any possible mismatch and resulting
cancellation between the subwoofer and your main speakers/amplifier.
To adjust, simply listen to the system with music playing. Then move the
switch from one position to the other and listen for a change in low
frequency output. The correct position will have a greater amount of
apparent low frequency output.
Crossover Switch - INTERNAL X-OVER/
SUBWOOFER DIRECT
This switch allows the internal crossover circuitry to be removed from the
signal path. This is required in certain installations which route the signal
through external processors with a crossover circuit of their own, such
as the new digital units. Simply move the switch to SUBWOOFER
DIRECT to disengage the built-in crossover. For all other installations
which do not have a separate electronic crossover, we recommend
you leave the switch set to INTERNAL X-OVER to provide
optimum performance.
Auto Turn on Function
With this function in the “auto” position, your subwoofer can be safely left
with the main power switched on continuously. The subwoofer will turn
itself on automatically when an audio signal is present. If no signal is
present for approximately 10 minutes, the unit will switch to standby
mode. While in standby mode, your subwoofer will draw very minimal
power. This function can be disabled by leaving the switch in the
“on” position.
Power Switch
The master power switch is located on the lower half of the unit. This
rocker style switch is the main on/off for the unit. This switch should be
set to position 1 (up) for on, and 0 (down) for off. If the unit is to be left
unused for an extended period of time, the master power switch should
be turned off.
4
TROUBLESHOOTING AND SERVICE
If you should experience a problem with the operation of your subwoofer,
please check all of the following before seeking service. Following is a
simple troubleshooting guide to assist you.
1. Verify that the unit is plugged in, power outlet used is active and
supplying proper voltage.
2. Is the power switch on?
3. Is the auto turn on/off set properly?
4. Is the unit receiving an input signal from your source?
5. Have all controls on the subwoofer (volume, crossover, phase,
etc.) been properly set?
6. If unit has been running at high levels for an extended period of
time, one of the protection circuits may be engaged.
• Is the built-in amplifier extremely hot to the touch?
• Is your power line voltage sagging below acceptable
levels?
If the protection circuitry is active, the unit may cycle on and off until
operating parameters return to normal. Under more serious conditions,
the unit may shut off completely. Normal operation should return upon
cooling, but you may be required to turn the power off and then on again
to reset the unit.
The following conditions require service by a qualified technician:
1. The power cord has become damaged
2. The unit does not appear to operate normally or exhibits
a marked change in performance
3. The unit has been exposed to water
4. Some part of the cabinet or circuitry is physically damaged
13