Description
JL Audio XDM400/4 4-Channel Class D, Full Range Car / Marine Amplifier +
JL Audio M6-650X-S-GMTI-I 6.5″ Marine Speakers
Amp Highlights
4-Channel Class D Full-Range Car/Marine Amplifier, 100 W x 4 @ 2 Ω / 75 W x 4 @ 4 Ω – 14.4V.
The ultra-compact XDM400/4 packs a serious full-range punch, generating a whopping 100 watts to each of its four channels into 2 ohms (14.4V, 1% THD). The technology that makes this much power possible in such a compact chassis is our advanced NexD™ high-speed switching design, which permits full bandwidth Class D operation with extremely low distortion and remarkable efficiency.
Suitable for car or boat installations, the XDM400/4 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.
Combine the XDM400/4 with our XDM600/1 monoblock to build a stunning 1000 W amplification system to power four satellites and a subwoofer… and fit the whole thing under a seat or deck. Or, use the XDM400/4 by itself to power two satellites, plus a subwoofer.
The XDM400/4 includes a 12 dB / octave filter for each channel bank, which can be configured as a low-pass or high-pass filter and offers 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 rear channels directly from the driver’s seat or cockpit.
Finished in a sleek, black powder-coat, all controls are protected beneath a gasketed, removable top cover for easy access.
Amp Specifications
Rated Continuous (RMS) Power @ 14.4 V
| @ 4 Ω | 75 W RMS x 4 |
| @ 2 Ω | 100 W RMS x 4 |
| Bridged @ 4Ω | 200 W RMS x 2 |
Rated Continuous (RMS) Power @ 12.5 V
| @ 4 Ω | 60 W RMS x 4 |
| @ 2 Ω | 90 W RMS x 4 |
| Bridged @ 4Ω | 180 W RMS x 2 |
General Specifications
| Frequency Response | 12 Hz – 22 kHz (+0, -1dB) |
| S/N Ratio, referred to highest rated power | >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 | >150 / 50 Hz |
| Damping Factor @ 2 Ω | >75 / 50 Hz |
| THD+N @ Rated Power | <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 | 40 A (AFS, AGU or MaxiFuse™) |
Signal Processing
| Filter Mode(s) | Low-Pass or High-Pass |
| Filter Slope(s) | 12 dB/octave |
| Filter Frequency Range | 50 Hz – 500 Hz |
| Detented, Calibrated Filter Freq. Potentiometers | Yes |
| Filter Defeat Function | Yes |
| Remote Level Control | Optional HD-RLC or MHD-RLC (water-resistant) |
| Remote Level Modes | 2 or All channels |
| Channel Input Mode Switch | Yes (2/4 ch.) |
| Pass-Through Preamp Output | Buffered |
| Source Channel Selection for PreOuts | Yes |
Physical Specifications 
| Height (H) | 2.05 in / 52 mm |
| Width (W) | 8.52 in / 216 mm |
| Depth (D) | 7.09 in / 180 mm |
| Net Weight | 6.3 lb / 2.86 kg |
Speaker Highlights
- 6-1/2″ 2-way marine speakers with RGB LED lighting (pair)
- injection-molded, mica-filled polypropylene woofer with synthetic rubber surround
- 3/4″ silk dome tweeter
- 2-way crossover attached to the woofer basket
- UV- and corrosion-resistant polymer baskets and grilles
- Transflective cones emit even glow when lit, appear silver with lighting off
- designed for free-air applications (no enclosures needed)
- power handling: 75 watts RMS (150 watts peak power)
- frequency response: 55-25,000 Hz
- sensitivity: 89.5 dB
- impedance: 4 ohms
- cutout diameter: 4.979
- frame diameter: 6.898
- mounting depth: 3.036
- warranty: 2 years
| Speaker Size | 6 1/2″ |
| Design | 2-way |
| Tweeter Design | 0.8″ Dome |
| Tweeter Composition | Treated Silk |
| Woofer Composition | Mica-Filled IMPP |
| Woofer Surround | Rubber |
| Parts Warranty | 2 Years |
| Labor Warranty | 2 Years |
General Specifications
| Sensitivity | 89.5 dB at 1 watt |
| Frequency Response | 55 – 25k Hz |
| Max RMS Power Handling | 75 |
| Peak Power Handling (Watts) | 150 |
| Impedance (Ohms) | 4 |
| Top-mount Depth (Inches) | 3 1/16″ |
Physical Specifications
| Frame Outer Diameter (A) | 6.90 in / 175 mm |
| Bolt Hole Circle Diameter (B) | 6.13 in / 156 mm |
| Frontal Grille Protrusion* (C) | 0.94 in / 24 mm |
| Mounting Hole Diameter (D) | 5.00 – 5.25 in / 127 – 133 mm |
| Mounting Depth (E) | 3.00 in. / 76 mm |
| *Frontal grille protrusion measured from mounting surface | |
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