XTZ EDGE SA-1 Bedienungsanleitung Seite 21

Receiver/Pre-amp
Without
Automated Setup
Low subwoofer gain/trim settings (on your receiver/processor) effect the operation of the "AUTO ON/
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OFF" signal sensing circuit. If your receiver/processor gain is set to a low values (e.g. attenuating the
signal -6dB or more) this reduces the signal available to properly "turn on" the subwoofer when using
the "AUTO ON/OFF" feature. If your subwoofer turns off unexpectedly when watching movies at low
volumes, you may wish to increase the receiver's/processor's subwoofer gain trim, and manually
reduce the volume using the subwoofer's "VOLUME" control to maintain proper balance.
Polarity/phase; This should be adjusted for smoothest frequency response near the crossover point.
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EQ settings; if your receiver/processor allows you to see the EQ settings for each channel, verify that
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it is not adding any extra "limiter", or "HPF" to the subwoofer channel, and that it is not adding a high
level of boost (e.g. >+3dB) or cut (e.g. -10db).
NOTE:
In some installations, automated room eq algorithms may make undesired changes to the subwoofer signal
settings trying to obtain what they believe is the best room response curve. In some systems these changes
have been known to degrade the overall sound quality of the subwoofer. If using a receiver/processor with
automated room EQ- function, we advise you listen to the system first with the EQ disabled, then again with
the EQ enabled, to determine if the changes are beneficial.
Older receivers and/or music preamps may not provide an automated setup function. With these systems,
optimal calibration usually requires some type of test equipment be utilized to provide test tones and take
measurements to properly calibrate your system. Some equipment you may use for this includes:
One of our measurement systems Room Analyzer II / II Pro. They are excellent tools to use when opti-
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mizing and setting up subwoofer/-s or other speakers in a system.
Test signal source; pink noise and/or sine wave of various frequencies (CD, DVD, your receiver/pre-
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amp, or external measurement equipment)
SPL meter
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RTA or other frequency response measurement tool (optional)
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Start with a quiet room free of excess background noise (e.g. people talking, kids playing, dogs bark-
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ing, etc.).
Verify that subwoofer control settings match illustrations for your type of system configuration
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Set any receiver/pre-amp speaker settings to an appropriate starting point (e.g. crossover). We recom-
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mend 80Hz crossover as a good starting point.
Start playing a test signal with energy in the subwoofer crossover region (e.g. full bandwidth pink noise)
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through all speaker as you measured from the first speaker
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