JL Audio XDM400/4
XDM Series 400W 4-Channel Class-D Car / Marine Audio Amplifier
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The JL Audio XDM400/4 is a compact, high-performance 4-channel marine amplifier engineered to bring crystal-clear power to your boat’s full-range speakers. Whether you're cruising the coastline or docked at sunset, this amplifier provides clean, consistent output that elevates your entire marine audio system. Built with JL Audio’s NexD™ Class D technology and full marine-grade durability, the XDM400/4 is your all-weather solution for premium sound on the water.
Key Features
| Category | Description |
|---|---|
| 4 x 100W @ 2Ω / 4 x 75W @ 4Ω RMS | Clean power for full-range marine speakers |
| 2-Channel Bridging Capability | Ideal for high-output tower speakers or subwoofers |
| NexD™ Switching Technology | High efficiency, low heat, ultra-clean audio |
| Fully Marine-Grade Build | Sealed, corrosion-resistant, IPX6-rated chassis |
| Variable Crossovers (HP/LP) | Fine-tune speaker performance (50–500 Hz) |
| Compact Form Factor | Easy to install in tight spaces |
| Speaker- and RCA-Level Inputs | Flexible integration into any marine system |
| Optional HD-RLC Remote Compatibility | Remote level control for added convenience |
What’s in the Box?
- 1 x JL Audio XDM400/4 4-Channel Marine Amplifier
- 1 x Mounting Hardware Kit
- 1 x User Manual
- 1 x JL Audio Decal
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.