Owner`s manual

6
Two additional LOWPASS FILTERS A&B, precision Alps pots, allows the user to select any
crossover frequency from 35 to 250Hz. These two separate 12db/oct filters provide exceptional
control for interfacing the
Force in a music system.
The Force has 0-180 degree
PHASE CONTROL:
experiment with the phase
control. Combined with the
input level and lowpass filters
A&B switches, the phase
switch gives you absolute
control over the integration of
the Force in your system.
Note: The easiest way to
adjust phase is to tune it for
maximum output. Since
phase is dependent on
positioning of the sub
relative to the main
speakers, adjust phase
after you have selected
your final placement. The
correct phase yields the
best overall integration
between the main speakers
and the Force.
The Force has stereo
highpass outputs. These
outputs are actively filtered to
rolloff at 12db/octave at
100Hz. You may use these
outputs to protect your main
speakers from low
frequencies. Alternately, you
can use the optional passive
plug-in high pass filters
available from ACI or
highpass filtering provided by
your Receiver or Processor.
A limiter and current sensing
feedback circuitry protect the
driver from being overdriven
and reduce distortion.
The discreet outputs of the amplifier deliver over 250watts RMS to the woofer with extremely low
distortion.
A temperature switch monitors the output devices. In the event of excess heat the switch will
shut down the circuitry to prevent damage. Once the heat sinks cool the power will be restored.
Because the electronics have been designed and ”tuned” to the woofer and cabinet, the Force
offers incredible performance in a relatively small cabinet.
Many subwoofers add unacceptable colorations and actually degrade the performance of
otherwise fine speakers. The Force is adaptable for use with virtually any satellite, electrostatic or
ribbon speaker. If you are satisfied with your present speakers but just want more bass power and