The JL Audio MX500/1 is a compact, genuine marine/powersports Class D monoblock amplifier built to deliver clean subwoofer power in harsh environments. It combines JL Audio’s high-speed NexD™ switching design with an IPX7 water-resistant, corrosion-resistant cast-aluminum chassis for reliable performance on boats, UTVs and other open-air 12V systems.

• OEM / Model: JL Audio MX500/1 (MFR #98407)
• SKU: JLMX500/1
• Channels: 1 (mono)
• RMS power @ 14.4V: 300W x1 @ 4Ω / 400W x1 @ 3Ω / 500W x1 @ 2Ω
• Frequency response: 20 Hz – 12 kHz
• Low-pass crossover: 40–400 Hz, 24 dB/octave (defeatable)
• Infrasonic (subsonic) filter: variable 20–40 Hz
• Bass boost: 0 to +12 dB @ 43 Hz
• Inputs: dual-range / differential-balanced (switchable 250 mV–4 V or 750 mV–15 V)
• Remote level control: optional JL Audio M-RBC-1 (sold separately)
• Recommended wiring / protection: 4 AWG power & ground, external 50A fuse (no onboard fuse)
• Dimensions (H x W x D): 1.77 in x 9.33 in x 4.50 in (45 x 237 x 115 mm)

Before ordering: confirm your subwoofer impedance (minimum 2Ω), required RMS power, available mounting space and system voltage/ground type. Need help matching a JL Audio marine subwoofer or a remote bass level control? Contact TMP Global’s parts team.

Supply note: Distributed by Recambios Marinos (Recmar) as a genuine JL Audio Marine product.