JL Audio JLA-010-03120-00 XDM600/6-24V 6-Channel Marine Amplifier

Professional 6-channel Class D amplification engineered specifically for 24V commercial marine vessels and heavy vehicle applications.

Product Overview

The JL Audio XDM600/6-24V 6-channel amplifier delivers comprehensive full-range amplification for 24V electrical systems found in commercial vessels, charter boats, coach buses, and heavy transport applications. With 100W RMS per channel at 2Ω (600W total) or 75W per channel at 4Ω (450W total), this marine-rated Class D platform drives complete audio systems including cabin speakers, cockpit zones, and helm areas from a single compact chassis. The 24V-specific design operates optimally at 22-29V input—the native voltage range of diesel-powered vessels and commercial vehicles with dual 12V battery configurations wired in series.

Built using JL Audio's advanced NexD™ high-speed switching design, the 6-channel configuration allows flexible system architecture: run all six channels independently, bridge pairs for higher power (200W per bridged pair), or configure as a staggered-power system with bridged front channels and unbridged rear channels. Variable high-pass and low-pass filtering on all three channel banks (50Hz-500Hz, 12dB/octave slopes) enables precise tuning for different speaker types and mounting locations. At 216mm wide with marine-grade construction and a 30A fuse rating, the XDM600/6-24V represents the ideal 24V amplification solution for Australian charter operators, commercial fishermen, and fleet managers demanding reliability in harsh coastal conditions.

Key Specifications

• 6-channel Class D amplifier designed for 24V electrical systems
• Maximum rated power (28.8V @ 2Ω, <1% THD): 100W RMS × 6 channels (600W total)
• Power at 4Ω load (28.8V @ 4Ω, <1% THD): 75W RMS × 6 channels (450W total)
• Bridged power (28.8V @ 4Ω, <1% THD): 200W RMS × 3 channels (600W total bridged)
• Power at 2Ω load (25V @ 2Ω, <1% THD): 90W RMS × 6 channels (540W total)
• Power at 4Ω load (25V @ 4Ω, <1% THD): 60W RMS × 6 channels (360W total)
• Bridged power (25V @ 4Ω, <1% THD): 180W RMS × 3 channels (540W total bridged)
• Operating voltage: 22-29V DC (24V systems only)
• Frequency response: 12Hz-22kHz (+0, -1dB)
• Signal-to-noise ratio: >104dB (A-weighted, 20Hz-20kHz, referred to highest rated power)
• Signal-to-noise ratio: >84dB (A-weighted, 20Hz-20kHz, referred to 1W)
• Damping factor @ 4Ω: >150 @ 50Hz
• Damping factor @ 2Ω: >75 @ 50Hz
• THD+N: <1% @ rated power, 2Ω per channel
• Input channel modes: 2-channel or 4-channel
• Filter modes (Channels 1 & 2, 3 & 4, 5 & 6): Off, Low-Pass, or High-Pass
• Filter slope: 12dB/octave
• Filter frequency range: 50Hz-500Hz
• Infrasonic filter: No
• Buffered pass-through preamp outputs: Yes
• Dimensions: 216mm (W) × 180mm (D) × 52mm (H)
• Weight: Not specified
• Fuse rating: 30A (AFS, AGU or MaxiFuse™ recommended)
• Minimum power/ground wire: 4 AWG copper
• Remote level control: Optional HD-RLC or MHD-RLC (water-resistant)
• Automatic turn-on: Signal sensing or DC-offset sensing
• Marine-grade construction with gasketed removable top cover
• 3-year manufacturer warranty

Features & Benefits

24V Commercial Marine Design
Purpose-built for 24V electrical systems common in commercial vessels, charter boats, and heavy transport. Unlike 12V amplifiers that require voltage adaptation, the XDM600/6-24V operates optimally at 22-29V input—the native voltage range of diesel-powered boats, coach buses, and commercial fishing vessels with dual 12V batteries wired in series. Eliminates the need for voltage converters or multiple 12V amplifiers in 24V installations, simplifying electrical infrastructure and reducing potential failure points.

Flexible 6-Channel Architecture
Configure for multiple installation scenarios: run all six channels independently (75-100W each) for complete cabin coverage, bridge three pairs for 200W outputs to demanding speakers, or create a staggered-power system with 200W × 2 bridged for front zones plus 75W × 2 unbridged for rear fill. The channel bank design (1&2, 3&4, 5&6) allows independent filtering and level adjustment per zone, perfect for commercial vessels requiring helm, cockpit, and cabin zones with different speaker requirements.

Advanced NexD™ Class D Topology
JL Audio's proprietary NexD™ high-speed switching design delivers full-bandwidth Class D operation with exceptionally low distortion and remarkable efficiency. The marine-grade conformal coating resists salt spray, bilge moisture, and corrosive environments encountered in Australian commercial fishing, charter operations, and offshore work vessels. Robust construction handles tropical humidity in Far North Queensland, Southern Ocean conditions off Tasmania, and everything between—engineered for installations where amplifier failure isn't an option.

Variable Filtering Across All Three Channel Banks
Precision crossover control on channels 1&2, 3&4, and 5&6 allows system-specific tuning. High-pass filter cabin speakers to remove low-frequency strain, low-pass subwoofer channels for dedicated bass reproduction, or run full-range where needed. The 12dB/octave slopes and 50Hz-500Hz continuously variable range accommodate any speaker configuration, from compact marine coaxials to high-output tower speakers. Independent filter control per channel bank enables sophisticated system design with multiple speaker types in different zones.

Compact 24V Power Distribution
The 30A fuse rating and 4 AWG wire compatibility simplify installation in commercial vessels with existing 24V distribution systems. At just 216mm wide, the compact chassis fits shallow-mount locations behind helm panels, under seats, or in equipment bays where larger amplifiers won't fit. The gasketed, removable top cover protects controls from moisture ingress while enabling easy access for tuning and adjustment during commissioning or seasonal maintenance.

Automatic Turn-On Capability
Dual-mode turn-on detection (signal sensing or DC-offset sensing) enables seamless integration with factory audio systems or aftermarket source units. Eliminates the need for separate remote turn-on wiring in many installations, simplifying OEM integration for commercial fleet applications. Critical for charter vessels and work boats where installers need reliable operation without complex wiring modifications to factory electrical systems.

Optional Water-Resistant Remote Control
Add JL Audio's HD-RLC or MHD-RLC (not included) for convenient output adjustment from the helm, flybridge, or entertainment zone. The remote provides level adjustment for two, four, or all six channels directly from the driver's seat or cockpit. Essential for commercial charter operators who need guest-accessible volume control, or fishing guides adjusting audio levels between travel and fishing modes without accessing the amplifier installation location.

Technical Specs

• Amplifier class: Class D (NexD™ high-speed switching design)
• Channels: 6 (Full-range)
• Operating voltage: 22-29V DC (24V systems only - NOT compatible with 12V systems)

Power Output (varies by voltage and load impedance):

• Maximum rated power (28.8V @ 2Ω, <1% THD): 100W RMS × 6 (600W total)
• Power at 4Ω load (28.8V @ 4Ω, <1% THD): 75W RMS × 6 (450W total)
• Bridged power (28.8V @ 4Ω, <1% THD): 200W RMS × 3 (600W total bridged)
• Power at 2Ω load (25V @ 2Ω, <1% THD): 90W RMS × 6 (540W total)
• Power at 4Ω load (25V @ 4Ω, <1% THD): 60W RMS × 6 (360W total)
• Bridged power (25V @ 4Ω, <1% THD): 180W RMS × 3 (540W total bridged)
• Frequency response (+0, -1dB): 12Hz-22kHz
• Signal-to-noise ratio (A-weighted, 20Hz-20kHz, referred to highest rated power): >104dB
• Signal-to-noise ratio (A-weighted, 20Hz-20kHz, referred to 1W): >84dB
• Damping factor @ 4Ω: >150 @ 50Hz
• Damping factor @ 2Ω: >75 @ 50Hz
• THD+N @ rated power: <1% @ 2Ω per channel
• Input channel modes: 2-channel or 4-channel selectable
• Filter modes (Channels 1&2, 3&4, 5&6): Off, Low-Pass, or High-Pass
• Filter slope: 12dB/octave
• Filter frequency range: 50Hz-500Hz (continuously variable)
• Infrasonic filter: No
• Buffered pass-through preamp outputs: Yes
• Remote level control compatibility: Optional HD-RLC or MHD-RLC (water-resistant)
• Automatic turn-on: Signal sensing or DC-offset sensing
• Recommended fuse type: AFS, AGU or MaxiFuse™
• Fuse rating: 30A
• Minimum copper power/ground wire gauge: 4 AWG
• Physical dimensions (W × D × H): 216mm × 180mm × 52mm (8.52" × 7.09" × 2.05")
• Weight: Not specified
• Construction: Marine-grade materials with gasketed removable top cover
• Finish: Black powder-coat
• Water rating: Not rated (marine-grade construction, not waterproof)
• Warranty: 3 years

Important Note: This is a 24V-specific model designed for commercial marine vessels, heavy vehicles, and applications with dual 12V batteries in series. It is NOT compatible with standard 12V automotive/marine electrical systems. Operating voltage range is 22-29V DC. Use in vessels with positive ground and/or voltages other than 24V will result in damage and void the warranty.

Compatible With / Goes Well With

Speaker Recommendations:

• Marine coaxial speakers rated 75-100W RMS (6", 6.5", or 6×9" sizes)
• Marine component speaker systems rated 75-100W RMS per channel
• Marine tower speakers rated 150-200W RMS per speaker (when bridged)
• Compact marine subwoofers rated 200W RMS (when using bridged channel pairs)
• Full-range cabin speakers for multi-zone installations

Installation Accessories:

• 4 AWG amplifier wiring kit designed for 24V systems with 30A+ inline fuse holder
• JL Audio HD-RLC or MHD-RLC water-resistant remote level control
• Marine-grade speaker wire (14-16 AWG recommended for most runs)
• RCA interconnect cables with marine-grade shielding
• 24V-compatible distribution blocks for multi-amplifier systems
• Heavy-duty amplifier mounting brackets or marine-rated equipment racks

System Compatibility:

• Marine head units with 24V DC operation and preamp outputs
• Commercial marine audio processors with 24V compatibility
• 24V electrical systems (dual 12V batteries in series configuration)
• Charter vessels, commercial fishing boats, work boats with 24V infrastructure
• Coach buses, heavy transport vehicles with 24V electrical systems

Electrical System Requirements:

• Confirmed 24V DC electrical system (22-29V operating range)
• Dual 12V batteries wired in series for 24V output
• Adequate alternator capacity for continuous audio operation
• Proper 24V distribution with circuit protection
• Dedicated ground point to hull/chassis (negative ground systems only)

Caution: This amplifier requires a 24V negative-ground electrical system. It will NOT operate on standard 12V automotive/marine systems. Verify your vessel or vehicle operates at 24V before ordering. Use in vessels with positive ground and/or voltages other than 24V will result in damage to the product and void the warranty. For 12V applications, consider the standard XDM 6-channel 12V variant.

Frequently Asked Questions

Is this amplifier compatible with my 12V boat electrical system?
No. This model requires a 24V DC negative-ground system (22-29V input range). It's designed for commercial vessels, charter boats, and heavy vehicles with dual 12V batteries wired in series. Attempting to use it on a 12V system will result in insufficient power and potential damage. For 12V applications, you need the standard XDM 6-channel 12V model.

Can I bridge channels for higher power to tower speakers or subwoofers?
Yes. Bridge adjacent channel pairs (1+2, 3+4, 5+6) for 200W RMS per bridged pair at 4Ω load (28.8V input). This allows three bridged outputs at 200W each, ideal for marine tower speakers or subwoofers requiring more power than single-channel 100W output. You can also mix configurations: bridge channels 1+2 and 3+4 for 200W front speakers, leave channels 5&6 unbridged for 75W rear fill.

What is the staggered-power configuration mentioned in the description?
Bridge four channels (1+2 and 3+4) for 200W × 2 @ 4Ω to front speakers, while leaving channels 5&6 unbridged for 75W × 2 @ 4Ω to rear speakers. This provides maximum power where needed (front soundstage) while conserving electrical capacity for rear fill. Alternatively, bridge channels 1+2 and 3+4 for two subwoofers at 200W each, plus channels 5&6 for satellite speakers at 75W × 2.

How does the automatic turn-on work without a remote wire?
The amplifier features dual-mode detection: signal sensing (detects audio signal on RCA inputs) or DC-offset sensing (detects DC voltage from source unit). This enables integration with factory systems that don't provide remote turn-on output. Select the appropriate mode based on your source unit—signal sensing for aftermarket units, DC-offset for many factory systems. Eliminates complex wiring modifications in commercial fleet installations.

What does "marine-grade construction" mean if it's not waterproof?
Marine-grade construction includes conformal-coated circuit boards to resist salt spray, moisture, and corrosion in marine environments. The gasketed removable top cover protects controls from moisture ingress. However, the amplifier is not waterproof/submersible—mount away from direct water streams, bilge flooding, or areas subject to washdown. Suitable for protected equipment bays, under helm panels, or in cabin locations with normal marine moisture exposure.