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| Fathom IWSv2
TROUBLESHOOTING
No sound from the subwoofer.
1. Verify that Fathom IWSv2 amp is plugged in, turned "ON" & that
front panel lights are "ON". If the Fathom IWSv2 amp will not
power up, check the circuit breaker that feeds its outlet.
2. If the Fathom IWSv2 amp is configured to automatically turn "ON" via Signal
Sensing mode, make sure the "12V TURN-ON" switch is set to "Off".
3. Test subwoofer using DEMO button on front panel of amp– if sub emits demo
tones the subwoofer's internal circuitry is fine and an input problem is likely.
Check the input cable connections at the Fathom IWSv2 amp and at the
receiver/preamp/processor.
4. Verify that your receiver's subwoofer settings have not changed.
5. If your other speakers play, but the Fathom IWSv2 does not, try changing the cable
that connects the Fathom IWSv2 to the system.
6. If the problem persists, call your dealer or JL Audio Technical Support
for assistance.
The bass level has changed.
1. Make sure your level settings (on the Fathom IWSv2 amp and in your receiver/
preamp/processor) have not changed.
2. If you are using the Fathom IWSv2's "Master Level" knob to set the subwoofer
level, confirm that the "Level Mode" switch is set to "Variable".
3. Verify the position of the ELF Trim knob.
Hums or other unusual noises from your Fathom IWSv2
1. See "Input Mode Switches" section on page 19 of this manual, especially if any
upstream components, cables, etc., have recently changed.
2. Turn off the Fathom IWSv2, disconnect all its input and output signal cables,
turn the Fathom IWSv2 back on. If the noise disappears, the noise is being
caused elsewhere in your system - reconnect cables one at a time to help locate
the problem.
Bass sounds "muddy" or "too heavy".
1. Try decreasing the 24 Hertz level using the ELF Trim control. Muddy bass
can sometimes be caused by too much low frequency output in a moderately
sized room.
2. Decrease the overall subwoofer level.
3. Verify your receiver's subwoofer settings.
4. Try a different main listening seat location. Changing your seating location can
have a HUGE effect on how your system sounds. See the placement discussion on
pages 6-10 of this manual.
D.A.R.O. Calibration attempt gives fast blinking Calibrate light
1. Be sure that the included JL Audio Microphone is properly plugged into the
front panel jack. Calibration will ONLY proceed with the JL Audio microphone
connected. Connecting any other mic will cause the calibration to fail.
2. If calibration fails with the JL Audio microphone properly connected, try running
calibration again with the microphone placed ~ 6 feet away from the Fathom
IWSv2 speaker enclosure. If calibration fails again, the microphone or microphone
cable is bad and will need to be replaced. Contact JL Audio Customer Service.
Page 33
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