Setting Subwoofer Controls - Paradigm CINEMA 100 CT Manuel Du Propriétaire

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SETTING SUBWOOFER CONTROLS

When setting up your subwoofer and fine tuning it to compliment your system, use music and video
soundtracks that you know well.They should contain selections with extended bass that is continuous
and repetitive. Set any tone or equalizer controls on your receiver or preamplifier to flat (zero) and
switch any loudness controls off.
Room acoustics vary. Experiment with subwoofer placement to find the best position. Certain subwoofer
positions may cause some bass frequency cancellation—when your speakers and subwoofer are "out-
of-phase" they work against each other through the crossover region and bass is reduced. If bass sounds
"weak" or "dislocated, " change the phase according to the instructions in point 4, below. When adjusting
your subwoofer, remember that bass should not be overbearing—the subwoofer should not draw
attention to itself—but it shouldn't be "thin" or difficult to hear, either. Use the following set-up tips to
fine-tune subwoofer bass in your listening room:
1. Turn the Subwoofer Cut-Off Frequency Control to the middle of the "Normal" range.
2. Slowly rotate the Subwoofer Level Control until you match the subwoofer output level with the
level of your speakers. Bass should be clearly audible but not intrusive.
3. If the sound is too "thin" set the Subwoofer Cut-Off Frequency Control higher than the "Normal"
range; if the sound becomes "boomy" set the Subwoofer Cut-Off Frequency Control lower than
the normal range.
4. If the bass sounds weak or "dislocated" you may have a phase alignment problem.Your Cinema
has a Phase Switch which is normally set to the 0° position. Switch it to the 180° position—this will
switch the phase of the subwoofer by 180° relative to your speakers. Listen to determine if you hear
more bass. If you don't hear more bass, return the Phase Switch to its original position and then
experiment with subwoofer placement to find an area of the room where there is less bass cancellation.
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