JL Audio JX500/1D: Monoblock Class D Subwoofer Amplifier, 500 W

This rugged and reliable Class D monoblock uses a robust MOSFET power supply design that delivers rock-solid bass performance at a very affordable price.

Targeted specifically for subwoofer applications, the JX500/1D includes a variable slope low-pass filter with continuously variable cutoff frequency selection from 50-200 Hz. It also features a variable bass boost at 45 Hz. with up to 12 dB of boost and an optional remote boost control. Dedicated hi-level inputs are included, in addition to conventional low-level RCA inputs, making it easy to integrate with a variety of OEM and aftermarket head units.

$299.00 $449.00

Class D Circuitry

Summary:
Subwoofer-optimized, Class D amplifier circuit delivers high efficiency without sacrificing low-frequency fidelity.

Detailed Information:
The design of our Class D subwoofer amplifier circuits places a high emphasis on damping of the driven load and low-frequency control. Exceptional efficiency is also achieved, which allows the amplifier to be physically compact and also draws far less current from a vehicle’s electrical system during high-power operation.


Specifications

Rated Continuous (RMS) Power @ 14.4 V

  • @ 4 Ω 300 W RMS x 1
  • @ 3 Ω 400 W RMS x 1
  • @ 2 Ω 500 W RMS x 1
  • @ 1.5 Ω N/A

    Rated Continuous (RMS) Power @ 12.5 V

    • @ 4 Ω 235 W RMS x 1
    • @ 3 Ω 300 W RMS x 1
    • @ 2 Ω 410 W RMS x 1
    • @ 1.5 Ω N/A

      General Specifications

      • Frequency Response 10 Hz - 150 Hz (+0, -1dB)
      • S/N Ratio, referred to highest rated power >90 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
      • S/N Ratio, referred to 1 W >62 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
      • Damping Factor @ 4 Ω >1000 / 50 Hz
      • Damping Factor @ 2 Ω >80 / 50 Hz
      • THD+N @ Rated Power <1% @ 2 Ω per Ch.
      • Input Voltage Range @ RCA Inputs 200 mV - 4 V RMS
      • Input Voltage Range @ High-Level Inputs 2 V - 10 V RMS
      • Min Copper Power / Ground Wire Gauge 4 AWG wire
      • Fuse Rating 60 A (AFS, AGU or MaxiFuse™)

        Signal Processing

        • Filter Modes Low-Pass only
        • Filter Slope (dB/Octave) 12 dB
        • Filter Frequency Range 50-200 Hz
        • Detented, Calibrated Filter Freq. Potentiometer No
        • Filter Defeatable? No
        • Infrasonic Filter none
        • Bass Boost EQ 0 to +12 dB @ 45 Hz
        • Output Polarity Switch No
        • Remote Subwoofer Level Control Optional (RBC-1)
        • Remote Bass EQ Boost Control No
        • Pass-Through Preamp Output Unbuffered

            Physical Specifications

            • Height (H) 2.09 in / 53 mm
            • Width (W) 7.83 in / 199 mm
            • Depth (D) 7.68 in / 195 mm
            • Net Weight 4.8 lb / 2.18 kg

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