AV123 Onix Rocket ULW-10, Руководство по использованию

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Many of today’s surround processors and home theater receivers will allow you to set all 5 speakers in
your room to either small or large, thus changing the way your ULW-10 interacts with your system.
Like almost all things audio, which setting to use is somewhat subjective, though it’s also a function
of your room. By a good majority, most rooms will obtain their best sound with all speakers set to
small
and crossed over to the ULW-10 at 80Hz. (small speakers might require a higher crossover) Of course
this is assuming the use of a high performance subwoofer such as the ULW-10. A strong sub ideally
placed will handle sub-80Hz information better than
most loudspeakers in most rooms. This is mainly
due to the tendency for competing sources of information below 80Hz to result in destructive bass wave
cancellation, thus eliminating the very frequencies your subwoofer was designed to play. In addition,
when crossed over with your ULW-10, the other loudspeakers in your system will play with greater ease
and less distortion, free from the demands of deep and complex sub-80Hz waveform reproduction.
Your speaker system amplifier will be less taxed as well, since much of the stress of producing deep
bass will be eliminated. Consequentially your loudspeakers should sound cleaner and more controlled.
An easy and user friendly way to test different methods and frequencies for crossing over your
subwoofer is to use low frequency sweeps recorded on special program material. One of our favorites is
the
AVIA Guide To Home Theater DVD. Specifically, the tones that descend in frequency from the
individual satellite speakers to the subwoofer are quite useful and effective. Using your SPL meter
(explained in the following sections), watch for the smallest amount of overall needle fluctuation while
you direct and descend the tones from speaker to subwoofer as you go around your system. In other
words, the point at which the signal transitions between your satellites and subwoofer should be
completely seamless and without definition.
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Section 4—Setting Up Your Surround Processor or Receiver
4.1 Small or Large?
7.