Cadence Home Cinema XLNS-12 Installation Manual - Some Basic Acoustic Facts:

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.