JL Audio J21000.1 - Manual (Page 6)

10 JL Audio 11
serViCing Your amPliFier
If your amplifier fails or malfunctions, please
return it to your authorized JL Audio dealer so
that it may be sent in to JL Audio for service.
There are no user serviceable parts or fuses inside
the amplifier. The unique nature of the circuitry
in the JL Audio amplifiers requires specifically
trained service personnel. Do not attempt
to service the amplifier yourself or through
unauthorized repair facilities. This will not only
void the warranty, but may result in the creation
of more problems within the amplifier.
If you have any questions about the installation or
setup of the amplifier not covered in this manual,
please contact your dealer or technical support.
Jl audio technical support:
(954) 443-1100
9:00 AM – 5:30 PM (Eastern Time Zone)
Monday - Friday
status indiCator ligHts /
ProteCtion CirCuitrY
There are two status indicator lights on the top
of the amplifier. These are as follows:
1) “Power” (Green): lights to indicate that the
amplifier is turned on and operating normally.
2) “Protect” (Red): lights to indicate that the
amplifier has exceeded its safe operating
temperature or has detected a short-circuit
in its speeaker output. For information
on troubleshooting this amplifier, refer to
Appendix C (pages 14, 15).
LP Filter Frequency (Hz) Input Sens. Bass Boost Remote Level Port
min max 40 300 Off +12dB
Protect Power
High-Level Inputs
LEFT
RIGHT
LEFT
RIGHT
Amplifier Controls Amplifier Inputs Pre-Outs Amplifier Status