The JL Audio XDM700/5 5-channel amplifier delivers comprehensive system amplification for complete marine and automotive installations requiring four satellite speakers plus a dedicated subwoofer channel. With 75W RMS × 4 for main speakers at 4Ω and 300W RMS for the subwoofer at 2Ω (700W total), this marine-rated Class D platform drives complete audiophile-grade systems from a single compact chassis. Built using JL Audio's advanced NexD™ high-speed switching design, the 12V configuration integrates seamlessly into standard automotive and marine electrical systems while the conformal-coated marine-grade construction withstands Australia's harshest coastal conditions, bilge moisture, and dusty 4WD environments.
The sophisticated signal processing architecture enables true 3-way crossover configuration: high-pass filter for front channels (50Hz-5kHz range with x10 multiplier), high-pass or bandpass filter for rear channels (50Hz-500Hz), and variable-slope low-pass filter (12dB or 24dB/octave) for the subwoofer channel. This flexibility allows precise system tuning for component speakers, coaxials, and subwoofers in demanding installations. Automatic turn-on capability via signal sensing or DC-offset sensing simplifies integration with factory systems. At 260mm wide, 2.79kg, and featuring a gasketed removable top cover, the XDM700/5 represents the ultimate single-amplifier solution for Australian marine enthusiasts and automotive audio specialists demanding complete system control without multiple amplifiers.
Filter Specifications:
Complete System Amplification from Single Chassis
Drive four satellite speakers plus a dedicated subwoofer without multiple amplifiers cluttering your installation. The 5-channel architecture delivers 75W × 4 for component or coaxial speakers while simultaneously providing 300W for a 10" or 12" subwoofer. Eliminates the complexity of separate 4-channel and monoblock amplifiers, reduces wiring bulk, simplifies power distribution, and frees valuable installation space in boats, utes, and caravans. Perfect for complete audiophile-grade systems in single-amplifier installations.
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 coastal boating, offshore fishing, and beach-launched vessels. Robust construction handles tropical humidity in Far North Queensland, dusty corrugated tracks in the Outback, and Southern Ocean conditions off Tasmania. Engineered for installations demanding reliability without compromise.
True 3-Way Crossover Capability
Configure as a sophisticated 3-way system: high-pass filter on front channels (tweeters/midrange), bandpass filter on rear channels (midrange/midbass), and low-pass filter on subwoofer channel. The x10 multiplier switch on channels 1&2 extends the high-pass range from 50Hz-500Hz to 500Hz-5kHz, enabling precise tweeter protection and component system integration. Detented, calibrated potentiometers ensure repeatable settings—critical for professional installers servicing multiple similar builds or enthusiasts fine-tuning complex systems.
Flexible Main Channel Filtering
Front channels (1&2) feature high-pass-only filtering with 50Hz-5kHz range, ideal for protecting component speakers from damaging low frequencies. Rear channels (3&4) offer high-pass or bandpass modes with 50Hz-500Hz range, providing flexibility for full-range coaxials or mid-bass duties in 3-way configurations. The independent filter architecture allows front and rear speakers to operate at different frequency ranges, maximizing system performance without external processors.
Variable-Slope Subwoofer Control
The dedicated subwoofer channel features selectable 12dB or 24dB/octave low-pass slopes with 50Hz-500Hz continuously variable range. Use 12dB slopes for sealed enclosures requiring gentler roll-off, or 24dB slopes for ported enclosures needing steeper cutoff near tuning frequency. The 300W output at 2Ω drives single 12" subwoofers with authority, while the 240W at 3Ω suits dual 6Ω subs wired in parallel—providing flexibility for various subwoofer configurations.
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 fleet applications or factory system upgrades. Critical for installations where installers need reliable operation without complex wiring modifications to factory electrical systems.
Optional Remote Level Control
Add JL Audio's HD-RLC or MHD-RLC (not included) for convenient output adjustment from the helm, driver's seat, or entertainment area. Switch between two modes: adjust subwoofer channel only (preserve main speaker levels while controlling bass), or adjust all channels simultaneously (master volume control). Essential for marine applications where the amplifier is mounted in inaccessible equipment bays, or quick bass adjustments between moored listening and underway conditions.
Channel Input Mode Switch
Configure input channels for 2-channel, 4-channel, or 6-channel operation depending on source unit preamp outputs. This flexibility accommodates various head unit configurations: use 2-channel mode with simple stereo sources, 4-channel mode with front/rear preouts, or 6-channel mode with dedicated subwoofer preout. Simplifies integration across different source equipment without external summing or Y-cables.
Main Channels Power Output (Channels 1, 2, 3, 4):
Subwoofer Channel Power Output (Channel 5):
Signal Processing:
Important Note: This is the 12V model. The XDM series includes 24V variants in some configurations, but this 5-channel model operates on standard 12V automotive/marine electrical systems only.
Speaker Recommendations:
Installation Accessories:
System Compatibility:
Subwoofer Configurations:
Electrical System Requirements:
Caution: Five-channel systems require careful planning. Ensure your head unit or DSP provides adequate preamp outputs (minimum 2-channel stereo plus subwoofer preout). The subwoofer channel does NOT support 1.5Ω loads—minimum 2Ω impedance required. Verify subwoofer impedance and wiring configuration before connection to avoid damage.
2.79kg (6.15 lbs)
Can I run component speakers on all four main channels?
Yes. The XDM700/5 is ideal for two pairs of component speakers (front and rear) plus a subwoofer. Use the high-pass filter on channels 1&2 for front components, high-pass or bandpass on channels 3&4 for rear components, and low-pass on the subwoofer channel. The x10 multiplier on channels 1&2 allows tweeter protection up to 5kHz.
What's the difference between the high-pass and bandpass filter modes on channels 3&4?
High-pass mode passes frequencies above the cutoff point (50Hz-500Hz)—ideal for full-range coaxial speakers. Bandpass mode passes frequencies within a specific range—useful for 3-way systems where channels 3&4 handle midrange duties between tweeters (channels 1&2) and subwoofer (channel 5). Configure based on your speaker type and system design.
Can I bridge the main channels for higher power to tower speakers?
Yes. Bridge channels 1+2 and/or 3+4 for 200W per bridged pair at 4Ω load. This is perfect for marine tower speakers requiring more power than the 75-100W per channel. Note that bridging disables individual channel filtering—use external crossovers or full-range tower speakers when bridged.
What subwoofer impedance should I use for maximum power?
Wire your subwoofer to 2Ω for maximum 300W output. Use a single 2Ω subwoofer, or a dual-voice-coil 4Ω subwoofer wired in parallel to achieve 2Ω. The amplifier does NOT support 1.5Ω loads. At 4Ω, the amp delivers 180W—adequate for many applications with lower electrical system demands.
How do I set up the remote level control for subwoofer-only adjustment?
Connect the optional HD-RLC or MHD-RLC remote and configure the amplifier's remote level mode switch to "Sub Channel" mode. This allows bass adjustment without affecting main speaker volumes—perfect for compensating between moored and underway listening, or adjusting bass levels based on music genre without retuning the entire system.
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