JL Audio’s exclusive Advanced Rollback Protection circuit monitors the amplifier’s thermal condition and adjusts amplifier operation to eliminate annoying amplifier shut-down events.
If a JL Audio amplifier equipped with Advanced Rollback Protection reach an unsafe operating temperature, a special circuit rolls back peak power output, without changing gain, until the amplifier cools down to a safe operating temperature. The red “Thermal” LED will light to indicate this condition has been reached. Once the amplifier cools down, the circuit restores full peak power output and the red “Thermal” indicator reverts to its normal state. The operation of Advanced Rollback Protection is inaudible in most cases, but it ensures that your music keeps on playing, even under the most demanding conditions.
Rated Continuous (RMS) Power AT 14.4 V
AT 4 Ohm 400 W RMS x 1
AT 3 Ohm 500 W RMS x 1
AT 2 Ohm 600 W RMS x 1
Rated Continuous (RMS) Power AT 12.5 V
AT 4 Ohm 300 W RMS x 1
AT 3 Ohm 400 W RMS x 1
AT 2 Ohm 500 W RMS x 1
Frequency Response 7 Hz – 500 Hz (+0, -1dB)
S/N Ratio, referred to highest rated power >87 dB below rated power (A-weighted, 20 Hz – 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W >67 dB (A-weighted, 20 Hz – 20 kHz noise bandwidth)
Damping Factor AT 4 Ohm >1000 / 50 Hz
Damping Factor AT 2 Ohm >500 / 50 Hz
THD+N AT Rated Power <1% AT 2 Ohm per Ch.
Input Voltage Range AT RCA Inputs 100 mV – 4 V RMS
Min Copper Power / Ground Wire Gauge 4 AWG wire
Fuse Rating 50 A (AFS, AGU or MaxiFuse)
Infrasonic Filter 30 Hz, defeatable
Bass Boost EQ No
Output Polarity Switch No
Remote Subwoofer Level Control Optional (HD-RLC)
Remote Bass EQ Boost Control No
Pass-Through Preamp Output Buffered
Filter Modes Low-Pass only
Filter Slope (dB/Octave) 12 dB or 24 dB
Filter Frequency Range 50-500 Hz
Detented, Calibrated Filter Freq. Potentiometer Yes
Filter Defeatable? Yes
Height (H) 2.05 in / 52 mm
Width (W) 8.52 in / 216 mm
Depth (D) 7.09 in / 180 mm
Net Weight 6.3 lb / 2.86 kg
NOTE: We advise that you retain all factory screws or other fasteners when removing the factory radio. They may be necessary when installing your new aftermarket radio. Depending upon vehicle configuration, other fasteners or installation parts may be required.
We also sell complete install packages (radios, speakers, etc.) that ensure you get every major component you need to make your purchase and installation as easy as possible. Please feel free to contact Customer Service with any install/package questions at 1-844-30AUDIO, Ext.1.