JL Audio MX500/1 Monoblock Class D Wide-Range Marine Amplifier

JL AudioSKU: MX5001


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  • Marine/powersports mono amplifier
  • 300 watts RMS x 1 at 4 ohms (500 watts RMS x 1 at 2 ohms)
  • Variable low-pass filter (40-400 Hz, 24 dB/octave)
  • Variable subsonic filter (20-40 Hz, 12 dB/octave)
  • Bass boost (0-12 db at 43 Hz)
  • Class D amplifier design with NextD™ switching amp technology
  • IPX6 water-resistance rating
  • Corrosion-resistant cast aluminum chassis
  • Overview

    Engineered specifically for powersports applications, the MX500/1 monoblock amplifier employs the high-speed NexD™ switching design to pack a serious audio punch, without straining charging systems. Its tiny, cast aluminum chassis is highly resistant to corrosion, with an IPX6 water-resistance rating, making it perfect for motorcycles, ATV’s or other utility vehicles.

    With a robust 500W of clean power into a 2-ohm load (14.4V, 1% THD), use one to drive a subwoofer, or grab a pair to deliver stunning output to a subwoofer system. The MX500/1 also features an adjustable low-pass crossover, a bass boost EQ, variable infrasonic filter and output polarity switch.

    Its dual-range input section accepts a wide range of input voltage levels, from line-level all the way to high-power speaker level signals. With the addition of an M-RBC-1 remote level control (sold separately), subwoofer output can be directly controlled from the driver’s seat.

    This amplifier features a black powder-coated finish, a gasketed cover for the controls and stainless steel hardware for durability. 

    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 250 W RMS x 1
    @ 3 Ω 300 W RMS x 1
    @ 2 Ω 400 W RMS x 1
    @ 1.5 Ω N/A


    General Specifications

    Frequency Response 20 Hz - 12 kHz (+0, -1dB)
    S/N Ratio, referred to highest rated power >97 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
    S/N Ratio, referred to 1 W >70 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
    Damping Factor @ 4 Ω >115 / 50 Hz
    Damping Factor @ 2 Ω >54 / 50 Hz
    THD+N @ Rated Power <1% @ 2 Ω
    Input Voltage Range @ RCA Inputs Switchable from 250 mV - 4 V RMS (Low) to 750 mV - 15 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) 24 dB/octave
    Filter Frequency Range 40 Hz - 400 Hz
    Detented, Calibrated Filter Freq. Potentiometer Yes
    Filter Defeat Function Yes
    Infrasonic Filter 20 Hz - 40 Hz, variable
    Bass Boost EQ 0 to +12 dB @ 43 Hz
    Output Polarity Switch Yes
    Remote Subwoofer Level Control Optional (M-RBC-1)
    Remote Bass EQ Boost Control No
    Pass-Through Preamp Output None


    Physical Specifications

    Height (H) 1.77 in / 45 mm
    Width (W) 9.33 in / 237 mm
    Depth (D) 4.50 in / 115 mm


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