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Troubleshooting
Symptom
Solution
No sound
The connections to the ALF100SM are very simple, so check
for a settings error or possible fault with the source or
amplifier before investigating connections at the ALF100SM.
Imbalance between
ALF100SM and the
system speakers
If the bass sound from the ALF100SM is not in balance with
the system speakers, check the subwoofer level settings
in the DSP configuration software. Ensure that the DSP
placement settings (corner, flat wall etc) have been correctly
set.
Vibration (in-wall)
If the vibration occurs after completion of installation,
disconnect the system speakers and run only the ALF100SM
(or just one ALF100SM at a time where there are more
than one). Use a slow frequency sweep (from a PC signal
generator or test CD) to identify the problem frequency
that excites the vibration. Set this frequency to excite the
vibration continually, then locate the source by listening
closely to the vibrating area. The source may be a loose
wire or pipe in a cavity that should be tied down or foam
wrapped, or a wall fitted item such as a light.
If the source of vibration appears to be the wall itself, apply
pressure to where the drywall touches the studs around the
ALF100SM and listen for changes that may indicate insecure
fixing of the drywall to the stud. Screws can be added in any
locations where vibration can be detected.
If you cannot resolve the problem, contact your supplier.