Alphasonik PBAT10E - Manual (Page 9)

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In the event that your Alphasonik speakers appear to require ser-
vice, we ask that you first do a little troubleshooting
to determine if the problem is actually the speaker or a problem locat-
ed in a different part of the vehicle such as the amplifier, wiring, fusing
or possibly the source unit.
If your Alphasonik speakers have been installed professionally by an
Authorized Alphasonik Dealer, we recommend that you return to the
Dealer and demonstrate the problem to a qualified installer or repair
technician. If you installed the speakers yourself, use the following
guidelines to help find the problem:
1. No Sound
*Check the source unit or amplifier for power and be sure
they are operating properly.
*Check all signal connections.
*Check for any wiring that may be shorting together or
touching the metal chassis.
*Check all ground connections.
2. Distorted Sound At All Volumes
*Check for bad speaker connections.
*Check wiring for correct polarity.
3. Distorted Sound At High Volumes Only
*Check for loose mounting of the speaker.
*Inspect the speaker for debris in the cone or other
obstructions.
4. Poor Bass Response
*Check wiring for correct polarity.
*Check for unstable or loose mounting surface.
*Check Bass and Treble controls at the source unit or
amplifiers.
5. Poor High Frequency Response
*Check wiring for correct polarity.
*Check Treble controls or EQ settings.
*Check the Tweeter for possible damage.
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