TW1 12-inch Subwoofer (300 W, 4 Ω)

Built on JL Audio’s patented thin-line subwoofer technology, the 12TW1 delivers a powerful combination of shallow mounting depth and excursion capability, while operating in insanely small enclosures (0.65 cu.ft. / 18.4 liters). This, combined with a special cast alloy frame design, makes the 12TW1 capable of operating in extremely tight spaces. These include under-seat installations in trucks, 2-seat sports cars and many other creative applications requiring a compact, low profile subwoofer design.

JL Audio’s patented thin-line woofer technology compresses the architecture of the 12TW1 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 a large motor structure further forward in the speaker than with conventional designs.

The 12TW1 also features a clever frame design that minimizes the frontal clearance required for the excursion of the driver. This is accomplished by recessing the suspension attachment surface, so that most of the forward excursion occurs within the frame’s dimensions. Thanks to this feature, the 12TW1 requires only 0.87 inches (22 mm) of frontal clearance, even with its grille installed. This allows for more efficient use of space and increased enclosure volume within a given overall depth.

Even though the 12TW1 is optimized for an enclosure much smaller than any other JL Audio twelve-inch Subwoofer, it never sounds like a big woofer struggling in a tiny box…instead, it delivers all the rich, deep, controlled bass you have come to expect from a JL Audio subwoofer system.

• Very shallow mounting depth (4.62 in / 117 mm)
• No pole vent: permits mounting close to rear wall of enclosure
• Extremely small sealed enclosure volume requirements
• Long linear excursion capability (0.40 in / 10 mm, one-way)
• DMA-optimized motor design
• Patented “concentric tube” architecture
• Patented “floating cone attach method” technology
• Cast alloy frame with flat edges for tight driver grouping
• Injection molded, mica-filled polypropylene cone
• Rubber surround
• Steel mesh grille included with each driver
• Precision-built in USA at JL Audio’s Miramar, Florida factory with global components

TW5v2 13.5-inch Subwoofer (600 W, 2 Ω)

We couldn’t leave the ultimate thin woofer alone… we had to make it even better.

Our patented thin-line woofer technology compresses the architecture of the 13TW5v2 using a “concentric tube” structure that supports the 7-inch diameter voice coil and the suspension attachments. This permits placement of the large motor structure much further forward in the speaker than with conventional designs, while allowing excellent linear excursion capability and mechanical stability.

To unleash even more performance from this technology, the v2 improves upon the original 13TW5 with 13% greater linear excursion capability. The cast alloy chassis has also been modified for greater strength and the redesigned motor now features an annular vent. The v2 is also available in single 2 ohm and single 4 ohm voice coil versions to fit a wide range of applications.

In keeping with its “tight-spaces” mission, the 13TW5v2 is optimized for enclosures that are far smaller than most 12-inch woofers require and only a bit larger than the air space needs of a typical, small-box 10-inch woofer. The mounting system is designed to fit in about the same footprint as a typical 12-inch woofer.

The 13TW5v2 is best used with amplifier power in the 250W – 600W range and is optimized to operate in a 0.80 cu. ft. (22.7 l) sealed enclosure. Detailed enclosure recommendations can be found in the “Specifications” tab.

Never has such high-quality sub-bass been possible in the most challenging installation applications.

Amplified Subwoofer System with Single 8W3v3-0.40 Subwoofer, Built-In 250W Class D Amplifier, Black Carpet – Ported Enclosure



With MicroSub+ systems, the power is built right into the subwoofer system. Housing a proprietary Class D amplifier, this incredible subwoofer system utilizes our exclusive DCD amplifier technology to extract maximum output from its specially engineered, ultra low-impedance W3v3 driver. By combining direct power conversion with an ultra-high current output section, DCD™ amplifiers are free of conventional switching power supplies, enabling them to generate remarkable power with unprecedented efficiency.

Key to the enclosure’s performance is its efficient slot-ported design and precise tuning of its 8Wv3 Subwoofer. Extensive interior bracing permits the use of thinner wall material that maximizes the enclosure’s internal volume relative to its exterior volume. The port wraps around two walls of the enclosure to produce the necessary low tuning frequency that ensures excellent extension and response smoothness. The flared port entry and exit further enhance sound quality by minimizing air-flow noises through the port.

Integration to OEM and aftermarket head units is a snap thanks to a variety of input options and automatic turn-on capability (via signal sensing or DC offset sensing). Also included is a variable frequency low-pass filter (50-200 Hz), along with output polarity control switch. Adding an optional RBC-1 remote level control (sold separately) lets you control subwoofer levels directly from the driver’s seat. A quick-disconnect power connector makes it easy to remove the subwoofer when you need the extra space. As with all MicroSub systems, these amplified versions produce the kind of output and extension normally associated with much larger systems.

Note: DCD amplified systems use very specific components. Never use a DCD amplifier or its companion subwoofer(s) with incompatible, non-DCD products. Doing so will void the warranty and may cause severe damage.

Finish: Black, high-grade automotive carpet with silver “JL AUDIO” embroidery on front baffle. A steel mesh grille is included to protect the Subwoofer.

Construction: CNC-Cut High-Grade MDF

Amplifier power: Built-in DCD Class D amplifier (250 W @ 0.40 Ω)
Nominal Impedance: 0.40 Ω

Enclosure and Subwoofer Built in USA with global components.

Amplified Subwoofer System with Dual 8W3v3-0.40 Subwoofers, Built-In 500W Class D Amplifier, Black Carpet – Ported Enclosure



With MicroSub+ systems, the power is built right into the subwoofer system. Housing a proprietary Class D amplifier, this incredible subwoofer system utilizes our exclusive DCD™ amplifier technology to extract maximum output from its specially engineered, ultra low-impedance W3v3 drivers. By combining direct power conversion with an ultra-high current output section, DCD amplifiers are free of conventional switching power supplies, enabling them to generate remarkable power with unprecedented efficiency.

Key to the enclosure’s performance is its efficient slot-ported design and precise tuning of its dual 8Wv3 Subwoofers, each in its separate airspace. Extensive interior bracing permits the use of thinner wall material that maximizes the enclosure’s internal volume relative to its exterior volume. The port for each driver wraps around two walls of the enclosure to produce the necessary low tuning frequency that ensures excellent extension and response smoothness. The two flared port entries/exits, one on each end of the enclosure, further enhance sound quality by minimizing air-flow noises through each port.

Integration to OEM and aftermarket head units is a snap thanks to a variety of input options and automatic turn-on capability (via signal sensing or DC offset sensing). Also included is a variable frequency low-pass filter (50-200 Hz), along with output polarity control switch. Adding an optional RBC-1 remote level control (sold separately) lets you control subwoofer levels directly from the driver’s seat. A quick-disconnect power connector makes it easy to remove the subwoofer when you need the extra space. As with all MicroSub systems, these amplified versions produce the kind of output and extension normally associated with much larger systems.

Note: DCD amplified systems use very specific components. Never use a DCD amplifier or its companion subwoofer(s) with incompatible, non-DCD products. Doing so will void the warranty and may cause severe damage.

Finish: Black, high-grade automotive carpet with silver “JL AUDIO” embroidery on front baffle. Steel mesh grilles are included to protect the Subwoofers.

Construction: CNC-Cut High-Grade MDF

Amplifier power: Built-in DCD Class D amplifier (500 W @ 0.20 Ω)
Nominal Impedance: 0.20 Ω

Enclosure and Subwoofers Built in USA with global components.

Continuous Power Handling (RMS)	Built-in amplifier 500 W @ 0.20 Ω
System Nominal Impedance	0.20 Ω
Input Voltage Range @ RCA Inputs	70 mV – 1.40 V RMS
Input Voltage Range @ High-Level Inputs	280 mV – 5.4 V RMS
Recommended Copper Power / Ground Wire Gauge	8 AWG wire
Fuse Rating	30 A (ATO or ATC)
Enclosure Type	Slot-ported, Low-profile
Finish	Black carpet
Grille Included	Black Steel Mesh

Signal Processing

Filter Mode(s)	Low-Pass only
Filter Slope(s)	12 dB/octave
Filter Frequency Range	50 Hz – 200 Hz
Output Polarity Switch	Yes
Remote Subwoofer Level Control	Optional (RBC-1)

Physical Specifications

External Width (W)	36.625 in / 905 mm
External Height (H)	11.125 in / 283 mm
External Depth (D1)	5.125 in / 130 mm
Net Weight	34.9 lb / 15.83 kg