JL Audio 3-Channel Class D Car/Marine System Amplifier - 010-03343-00
JL Audio 98682 3-Channel Class D Car/Marine System Amplifier
Small enough to fit in just about any tight space application, the XDM500/3 is the perfect amplifier for a simple audiophile-grade, subwoofer / satellite system. With its three channels of versatile output, you can drive a pair of quality component speaker systems with plenty of clean power, while also delivering a stout 300 W to your subwoofer system. The technology that makes this much power possible in such a small chassis is our advanced NexD™ switching amplifier design.
Suitable for car or boat installations, the XDM500/3 is built with marine-grade materials and features an exclusive, dual-mode input filter for noise-free performance in boats or cars. Automatic turn-on capability (via signal sensing or DC-offset sensing) is also onboard for easy factory system upgrades.
The XDM500/3 includes a 12 dB / octave high-pass filter for its main channels, plus a variable slope low-pass filter for its subwoofer channel. Both filters offer continuously variable cutoff frequency selection from 50-500 Hz. With the addition of an optional HD-RLC or MHD-RLC (water-resistant) remote level controller (each sold separately), you have the ability to adjust the level of all amplifier channels or just the subwoofer channel directly from the driver's seat or helm.
Finished in a sleek, black powder-coat, all controls are protected beneath a gasketed, removable top cover for easy access.
Features
- NexD™ Switching Technology
NexD™ amplifier technologies produce exceptional audio quality, unsurpassed total efficiency and high power from very compact amplifier designs. - Advanced Rollback Protection
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. - Differential-Balanced Inputs
JL Audio’s Differential-Balanced Inputs are engineered to combat induced cable noise, which is a common problem in car and marine audio installations. This technology allows for the use of conventional RCA cables, while delivering many of the benefits of a true balanced connection and accepting a wide range of input signal levels.
Specifications
Rated Continous (RMS) Power @ 14.4V
- Main Channels @ 4 Ω: 75 W RMS x 2
- Main Channels @ 2 Ω: 100 W RMS x 2
- Main Channels - Bridged @ 4Ω: 200 W RMS x 1
- Subwoofer Channel @ 4 Ω: 180 W RMS x 1
- Subwoofer Channel @ 3 Ω: 240 W RMS x 1
- Subwoofer Channel @ 2 Ω: 300 W RMS x 1
- Subwoofer Channel @ 1.5 Ω: N/A
Rated Continuous (RMS) Power @ 12.5 V
- Main Channels @ 4 Ω: 60 W RMS x 2
- Main Channels @ 2 Ω: 90 W RMS x 2
- Main Channels - Bridged @ 4Ω: 180 W RMS x 1
- Subwoofer Channel @ 4 Ω: 180 W RMS x 1
- Subwoofer Channel @ 3 Ω: 240 W RMS x 1
- Subwoofer Channel @ 2 Ω: 300 W RMS x 1
- Subwoofer Channel @ 1.5 Ω: N/A
General
- Frequency Response (Main Channels): 12 Hz - 22 kHz (+0, -1dB)
- Frequency Response (Subwoofer Channel): 10 Hz - 1 kHz (+0, -1dB)
- S/N Ratio, referred to highest rated power (Main Channels): >104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
- S/N Ratio, referred to 1 W: >84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
- Damping Factor @ 4 Ω: >120 / 50 Hz
- Damping Factor @ 2 Ω: >60 / 50 Hz
- THD+N @ Rated Power (Main Channels): <1% @ 2 Ω per Ch.
- THD+N @ Rated Power (Subwoofer Channels): <1% @ 2 Ω per Ch.
- Input Voltage Range @ RCA Inputs: 200 mV - 4 V RMS
- Min.Copper Power / Ground Wire Gauge: 4 AWG wire
- Fuse Rating: 50 A (AFS, AGU or MaxiFuse™)
Signal Processing
- Filter Mode(s): Channels 1 & 2 (front): High-Pass only
- Filter Slope(s): Channels 1 & 2 (front): 12 dB/octave
- Filter Frequency Range: Channels 1 & 2 (front): 50 Hz - 500 Hz
- Filter Mode(s): Channels 3 & 4 (rear): N/A
- Filter Slope(s): Channels 3 & 4 (rear): N/A
- Filter Frequency Range: Channels 3 & 4: N/A
- Filter Mode(s): Subwoofer Channel: Low-Pass only
- Filter Slope(s): Subwoofer Channel: 12/24 dB/octave
- Filter Frequency Range: Subwoofer Channel: 50 Hz - 500 Hz
- Detented, Calibrated Filter Freq. Potentiometers: Yes
- Filter Defeat Function: Yes
- Infrasonic Filter: Subwoofer Channel: None
- Remote Level Control: Optional HD-RLC or MHD-RLC (water-resistant)
- Remote Level Modes: Sub Ch. or All Channels
- Channel Input Mode Switch: Yes (2/4 ch.)
- Pass-Through Preamp Output: Buffered
- Source Channel Selection for PreOuts: Yes (1&2/Sum/Sub)
General
Warranty Information
Approximate Weight
Approximate Dimensions
Guides
Similar Products (5 items)
which ends 07/06/2026
Frequently Asked Questions
-
The amplifier delivers a total of 500 watts of power, with the ability to drive a pair of component speaker systems and provide 300 watts to a subwoofer system, ensuring clear and powerful audio performance.
-
Yes, it includes Advanced Rollback Protection which monitors thermal conditions and adjusts operation to prevent unwanted shutdowns, enhancing reliability during extended use.
-
The amplifier supports optional remote level controllers that allow you to adjust the volume for all channels or just the subwoofer right from your seat or helm for convenient control.
-
It features a 12 dB/octave high-pass filter for main channels and a variable slope low-pass filter for the subwoofer channel, both with adjustable cutoff frequencies ranging from 50 to 500 Hz, allowing precise sound tuning.
-
Yes, it is built with marine-grade materials and includes a dual-mode input filter designed to eliminate noise, making it ideal for use in both car and boat installations.