Cadence XLNS-12 - Manual (Page 2)

Thank you for purchasing a Cadence Cinema Home Series Active Powered
Subwoofer.
SOME BASIC ACOUSTIC FACTS:
The acoustic characteristics of a sub woofer are such that the bass waves will
travel along the floor of your room. You may therefore position the sub woofer in
any place as the wave is non directional.
The sub woofer you have purchased is an Active Powered design. Because the sub
power amplifier is built-in to the woofer cabinet. Even though sub woofer bass
waves are non directional, still for a more massive response, the sub woofer
should be placed in close proximity to the main listening area. The sub woofer
design incorporates a front firing woofer in a rear ported, computer tuned
enclosure. The enclosure features 4 metal spiked footings which should be
installed by you to isolate the sub woofers vibration from your house. It is
important to keep this open space between the sub woofer enclosure and the
floor. Never block this space, the enclosure must sit on all 4 footings.
For optimum bass response in your system, position the sub woofer with the
tuned port facing a room corner. By doing so, you are creating a loading effect
which enhances the bass response. In certain installations, facing the woofer face
to the wall or corner might also enhance the bass response and eliminate some
mechanical noises when the woofer is being over driven.
ADJUSTING YOUR SUB WOOFER:
The sub woofer features an adjustable Phase Shift Control. This switch acts as a
delay for optimal sound balance between the sub woofer and the other
component speakers in the system. Experiment with the switch in both positions
to determine which sounds better in your home theater system. Typically, if the
sub woofer is located near the front your system, near your TV/Monitor, you can
leave the switch in the 0 position. If the sub woofer is located at the rear of the
listening area, it should be set to the 180 position.
You may adjust the sub woofer crossover frequency from 40Hz to 120Hz. Set your
sub woofer level control to the desired volume and then begin to raise the sub
woofer crossover frequency towards the 120Hz position, until it begins to blend
with the rest of your system. If your system is equipped with larger front stage
speakers, you should be able to keep the sub woofer frequency below 80Hz as the
front speakers will begin to produce bass at that same level and you will get a nice
overlap. When using smaller satellite front stage speakers, you will have to raise
the sub woofer crossover frequency to 120Hz so the sub woofer can mesh with
their higher bass response.
Your sub woofer also features a “Bass Equalization” control. This control allows
you to boost or cut up to 12dB of bass at 50Hz. This allows you to compensate and
add bass during weak musical passages, and to also cut out some bass, should you
so choose, during very intensive bass passages.