AV123 x-cs, Руководство по использованию

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your subwoofer is placed, it should not be easily localized, but should instead produce a
balanced and enveloping response.
Factors that can affect performance in relation to placement and localization of the
sound are rattles from shelves, walls, or other nearby objects, as well as distorted
output. If you are having issues with subwoofer localization, try to isolate any rattling
or buzzing objects, or place the sub in another corner of your room. If the sub’s output
is distorted, check to see that you are not at the maximum sub level setting on your
receiver or preamplifier/processor. An overdriven output can induce audible distortion. To
resolve, you may need to turn down the subwoofer level on your processor and turn the
gain level up on the subwoofer itself to compensate.
One trick experienced home entertainment installers sometimes use is to feed a low
frequency test tone to the subwoofer input while it’s placed in the listening position and
then as you walk around the room you will identify places where low frequency is greater
(or less evident). This is easier than moving the subwoofer around. Once you determine
a good location - both audibly and visually - you should be able to make the switch and
place the sub in the new location, with better results.
Finally, you can use the control of the subwoofer’s output level control (gain) and phase
control (0 or 180°) to further blend the sound into the other system speakers as a
result of where you ultimately choose to position the x-sub. If you are using the x-sub
in a home theater arrangement, the bass management functions of the preamplifier/
processor will also help to compensate for some of the positioning issues, but remember
that there is no substitute for correct speaker placement.