This potent monoblock amplifier employs JL Audio's high-speed NexD™ switching design to achieve unprecedented efficiency and amazing power output from a very compact chassis. Don't let its small size fool you, though... the XDM/600/1 generates serious subwoofer power, delivering a full 600 W of continuous power into a 2 ohm load (14.4V, 1% THD).

Designed for car or boat installations, the XDM600/1 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.

Targeted specifically for subwoofer applications, the XDM600/1 includes a variable slope low-pass filter with 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), the amplifier's level can be adjusted directly from the driver's seat or captain’s chair.

Finished in a sleek, black powder-coat, all controls are protected beneath a gasketed, removable top cover for easy access.

The Colorado/Canyon offers a great combination of real truck capabilities from within a compact platform. The Extended Cab version of this mid-size truck has limited back seat space for passengers and does not leave much room for a bulky subwoofer enclosure.

Fortunately, JL Audio’s Stealthbox® design team has arrived at a clever solution that mounts between the jump seats, while also creating separate storage spaces beneath each seat. Equipped with our innovative 10-inch TW3 thin-line subwoofer, this down-firing Stealthbox® features an all-fiberglass, sealed enclosure design and generates loads of great-sounding, deep, bass output.

The Hard Data: Contains one 10TW3-D4 subwoofer in a sealed enclosure. 400 watt power handling. Wired for 2 ohm mono. Installs between and under rear jump seats. Requires removal of under-seat storage tray/cup holders and relocation of jack tools.

Building on the core technology of our TW5 thin-line subwoofers, the new TW3’s deliver a powerful combination of shallow mounting depth and excursion capability. In fact, they are capable of greater excursion than the W3v3’s.

To allow this remarkable feat to be achieved, JL Audio’s patented thin-line woofer technology compresses the architecture of the TW3’s using a “concentric tube” structure built into the injection-molded cone body. This structure supports the voice coil and a full annular spider, while permitting the placement of the large motor structure further forward in the speaker than with conventional designs.

TW3’s are optimized for small enclosures and offer our tab-ear mounting design to maximize cone area within their mounting footprints. We know you’re going to love working with these amazing subwoofer drivers.

Deep, powerful and accurate JL Audio bass is now possible in more applications than ever.

• Very shallow mounting depth (3.25 / 3.50 Inches)
• No pole vent: permits mounting close to rear wall of enclosure.
• Very small sealed enclosure volume requirements
• Very long linear excursion capability (0.60 In / 15.2 mm, one-way)
• DMA-optimized motor designs


• Patented “concentric tube” architecture
• Patented “floating cone attach method” technology
• Cast alloy frame
• Injection molded, mica-filled polypropylene cone
• Rubber surround
• Aluminum-alloy dust cap and rear cap with JL Audio logo
• Precision-built in USA with Global Components at JL Audio’s Miramar, Florida factory