JL Audio JD500/1 Monoblock Class D Subwoofer 500 Watt Amplifier

JL Audio JD500/1 Monoblock Class D Subwoofer 500 Watt Amplifier

Designed to produce a whopping 500 watts into 2 ohms (14.4V, 1% THD), the JD500/1 amplifier is a great solution for powering subwoofers in a cost-conscious system. Our proprietary NexD™ switching technology delivers large amounts of real-world power output with excellent efficiency and ultra-low distortion.

The JD500/1’s controls are located on the input panel. while the power and speaker connections can be found along the opposite end of its extruded aluminum chassis. Signal processing features include a 12 dB / octave low-pass filter, with continuously variable frequency selection from 50-500 Hz, and a variable bass boost EQ. Dual-range, differential-balanced inputs are also on-hand, capable of accepting line-level and speaker-level signals. Automatic turn-on capability (via signal sensing or DC-offset sensing) is standard, along with a set of preamp outputs so you can easily pass signals to another amplifier.

The JD500/1 is also equipped with an onboard LED-clipping indicator ring, surrounding the input sensitivity control. This useful feature lets you set your amplifier’s input sensitivity, quickly and accurately, without special equipment. With the addition of an RBC-1 remote level control (sold separately), you can control the subwoofer level from the driver’s seat.

Specifications

Rated Continuous (RMS) Power @ 14.4 V
@ 4 Ω: 250 W RMS x 1
@ 3 Ω: 350 W RMS x 1
@ 2 Ω: 500 W RMS x 1

Rated Continuous (RMS) Power @ 12.5 V
@ 4 Ω: 225 W RMS x 1
@ 3 Ω: 300 W RMS x 1
@ 2 Ω: 400 W RMS x 1

General Specifications
Frequency Response: 7 Hz - 500 Hz (+0, -1dB)
S/N Ratio, referred to highest rated power: >80 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W: >60 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Damping Factor @ 4 Ω: >1000 / 50 Hz
Damping Factor @ 2 Ω: >500 / 50 Hz
THD+N @ Rated Power: <1% @ 2 Ω per Ch.
Input Voltage Range @ RCA Inputs: Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High)
Min.Copper Power / Ground Wire Gauge: 4 AWG wire
Fuse Rating: 50 A (AFS, AGU or MaxiFuse™)

Signal Processing
Filter Mode(s): Low-Pass only
Filter Slope(s): 12 dB/octave
Filter Frequency Range: 50 Hz - 500 Hz
Detented, Calibrated Filter Freq. Potentiometer: No
Filter Defeat Function: No
Infrasonic Filter: No
Bass Boost EQ: Yes
Output Polarity Switch: No
Remote Subwoofer Level Control: Optional (RBC-1)
Remote Bass EQ Boost Control: No
Pass-Through Preamp Output: Buffered

Physical Specifications
Height (H): 2.10 in / 53 mm
Width (W): 9.50 in / 242 mm
Depth (D): 7.50 in / 190 mm