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JL Audio J2 500 Seite 5

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8 JL Audio®
9
SPEAKER OUTPUT
Speaker connection to the J2-500.1 is
straightforward and takes place at the far right
of the power/speaker connection panel. A
single positive (“+”) connection and a single
negative (“–”) connection are available via a
connector labeled “Speaker Output (Mono)”.
Reversed
|
Normal
Output Polarity
LP Filter Frequency (Hz)Input Sens. Bass Boost
min max
40 130 O +12dB
Power
Remote
Level
Port
LEFT
RIGHT
LEFT
RIGHT
Preamp
Outputs
Amplifier
Inputs
Speaker loads below 2Ω nominal are not
recommended and will cause the amplifier to
enter into a protection mode.
Do not chassis ground any speakers connected
to this or any other JL Audio amplifier. Doing so
will cause the amplifier to go into protection.
To connect the speaker wires to the amplifier,
strip 1/2-inch (12 mm) of insulation from
each speaker wire and insert them into their
appropriate connector (observing correct
polarity). Then, tighten each connector using a
Phillips screwdriver.
Do NOT attempt to “bridge” two J2-500.1’s
together or combine their output to a single
load in any manner. Doing so will damage the
amplifier(s).
Before reconnecting the battery ground and
turning the system on, verify that all control
settings on the amplifier are set according to
the needs of the system.
“POWER” INDICATOR LED /
PROTECTION CIRCUITRY
The multi-color “Power” LED on the J2-500.1
also serves as a status indicator for certain fault
conditions. Its operation is as follows:
1) Red: Amplifer is turning on.
2) Green: Amplifier is on / operating normally.
3) Yel low: Protection mode activated due to one
of the following: Shorted outputs, too low of a
load impedance or thermal overload (too hot).
Once the fault condition is corrected, the
amplifier will return to normal operating
mode and the LED will turn green again. For
information on troubleshooting this amplifier,
refer to Appendix C (pages 12, 13).
Reversed
|
Normal
Output Polarity
LP Filter Frequency (Hz)Input Sens. Bass Boost
min max
40 130 O +12dB
Power
Remote
Level
Port
LEFT
RIGHT
LEFT
RIGHT
Preamp
Outputs
Amplifier
Inputs
SERVICING YOUR JL AUDIO 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:
(9 5 4) 4 43 -110 0
9:00 AM – 5:30 PM (Eastern Time Zone)
Monday - Friday
“PREAMP OUTPUTS”
The J2-500.1 incorporates a preamp output
section, designed to make multiple amplifier
systems easy to set up. This section consists
of a pair of RCA-type jacks marked
“Preamp Outputs”.
Reversed
|
Normal
Output Polarity
LP Filter Frequency (Hz)Input Sens. Bass Boost
min max
40 130 O +12dB
Power
Remote
Level
Port
LEFT
RIGHT
LEFT
RIGHT
Preamp
Outputs
Amplifier
Inputs
The Preamp outputs deliver the same signal that
is being fed to the inputs. (If the input signal are
full-range, the preamp outputs will be full-range).
This signal is not affected by the bass boost or LP
FIlter processing selected for the amplifier.
“BASS BOOST” CONTROL
The J2-500.1 includes a single band, boost-
only bass equalizer controlled by a rotary knob
marked “Bass Boost”. This control has a boost
range of 0dB (full-counterclockwise) to +12dB
(full-clockwise) and is centered at 45 Hz.
Reversed
|
Normal
Output Polarity
LP Filter Frequency (Hz)Input Sens. Bass Boost
min max
40 130 O +12dB
Power
Remote
Level
Port
LEFT
RIGHT
LEFT
RIGHT
Preamp
Outputs
Amplifier
Inputs
REMOTE LEVEL CONTROL
The J2-500.1 includes a remote level control
that can be mounted in the front of the vehicle.
This control allows the owner to adjust the overall
subwoofer level to taste. To connect the remote
bass control knob, insert its plug into the jack
labeled “Remote Level Port” on the amplifier
and route the cable and control to the desired
location in the front of the vehicle.
Reversed
|
Normal
Output Polarity
LP Filter Frequency (Hz)Input Sens. Bass Boost
min max
40 130 O +12dB
Power
Remote
Level
Port
LEFT
RIGHT
LEFT
RIGHT
Preamp
Outputs
Amplifier
Inputs
Care should be taken to securely mount this
control in a manner that does not interfere with
vehicle operation.
When setting the amplifier’s input sensitivity,
the Remote Level Control should be unplugged or
at full clockwise rotation (maximum level).
J2_500_1_MAN_CH.indd 8-9 4/22/09 11:24:45 AM
5

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