JL Audio XDM300/1 300W RMS Monoblock Class D Car & Marine Subwoofer Amplifier (010-03839-00)

The compact JL Audio XDM300/1 delivers dedicated bass amplification for marine or automotive audio installations. Featuring efficient NexD switching, onboard subwoofer signal processing and noise-rejection input circuitry, it is designed to add clean low-frequency authority without excessive space or electrical demand.

Key Features

• 300W RMS-rated dedicated subwoofer amplifier
• NexD Class D circuitry designed for high electrical efficiency
• Car/marine dual-mode input filtering reduces electrical interference
• Adjustable subwoofer signal processing and protected controls
• Weather-resistant black powder-coated chassis

Technical Specifications

• Configuration: 1-channel monoblock subwoofer Class D amplifier
• Continuous Rated Output: 300W RMS
• Use: Car & Marine
• Amplifier Technology: NexD
• Input Filtering: Selectable automotive/marine

Additional Technical Specifications

• RMS output at 14.4V: 200W x 1 at 4 ohms; 300W x 1 at 2 ohms
• Variable low-pass crossover: 50–500Hz, 12 or 24dB/octave
• Inputs: RCA line-level; speaker-level via optional adapter
• Marine/car switchable input-noise filtering
• Recommended external fuse: 30A
• Recommended power and ground: 4 AWG
• Dimensions: 6-7/8" W x 2" H x 7-1/8" D

Compatibility

Use with speaker impedance and charging voltage within official XDM300/1 specifications; not a full-range multichannel amplifier.

Installation Notes

Install with manufacturer-recommended external fuse, cabling, crossover settings and ventilation clearance.