Troubleshooting - JL Audio Gotham g213 Owner's Manual

| Gotham g213

TROUBLESHOOTING

No sound from subwoofer.
1. Verify that Gotham is plugged in, turned "ON" & that front panel lights are "ON".
If the Gotham will not power up, check the circuit breaker that feeds its outlet.
2. Test subwoofer using DEMO button on front panel – if sub emits demo tones the
subwoofer's internal circuitry is fi ne and an input problem is likely. Check the
input cable connections at the Gotham and at the receiver/preamp/processor.
3. Verify that your receiver's subwoofer settings have not changed
4. If your other speakers play, but the Gotham does not, try changing the cable
that connects the Gotham to the system.
5. If the problem persists, call your dealer or JL Audio Technical Support
for assistance.
Th e bass level has changed.
1. Make sure your level settings (on the Gotham and in your receiver/preamp/
processor) have not changed.
2. If you are using the Gotham's "Master Level" knob to set the subwoofer level,
confi rm that the "Level Mode" switch is set to "Variable".
3. Verify the position of the E.L.F. Trim knob.
Hums or other unusual noises from your Gotham
1. See Input Mode discussion on page 20 of this manual, especially if any
upstream components, cables, etc., have recently changed.
2. Turn off the Gotham, disconnect all its input and output signal cables, turn the
Gotham back on. If the noise disappears, the noise is being caused elsewhere in
your system.
Bass sounds "muddy" or "too heavy".
1. Try decreasing the 25 Hertz level using the "e.l.f. 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 diff erent subwoofer or main listening seat location. Changing one or the
other can have a HUGE eff ect on how your system sounds. See the placement
discussion on pages 6-10 of this manual.
Your Gotham is clearly audible outside of your house.
1. Revisit the "Master Level" setting on your Gotham(s) or your home theater
receiver/preamp/processor.
2. Inquire with your JL Audio dealer about noise isolation strategies.
3. Move the Gotham away from windows.
Angry neighbors knocking at your door.
Invite them in and off er them a beverage.
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