JL Audio 12W0V3-4 12" Car Subwoofer
JL Audio 12" SUB 300 RMS 4Ω
( JL Audio 12W0V34 )
- Australian JL Audio Warranty
- Purchase Guarantee (see T&C's)
- JL Audio 12" Subwoofer
- 300W RMS at 4Ω
- Deep, clean bass
- Shallow-mount design
Overview
The JL Audio 12TW1-4 is a 12-inch Thin-Line subwoofer engineered to deliver deep, accurate, and powerful bass in vehicles with limited space. Featuring JL Audio’s patented Thin-Line technology, it achieves impressive performance with a shallow mounting depth of just 117 mm and requires only 22 mm of frontal clearance with the grille installed. Handling 300W RMS at 4Ω, this subwoofer is ideal for compact, high-performance car audio systems. Its design ensures efficient cooling, low distortion, and consistent sound quality, making it perfect for sealed or custom enclosures where space is at a premium but premium bass is essential.
Key Features:
12-Inch Slim Subwoofer
Delivers deep, powerful, and accurate bass from an ultra-shallow design ideal for space-limited systems.
Power Handling
Rated 400 W RMS at 4 Ω (dual 4 Ω voice coils), providing high-output, clean performance with flexible wiring options.
Thin-Line & Concentric Tube Technology
Built on JL Audio’s Thin-Line platform with a concentric-tube cone structure that compresses depth while supporting long linear excursion.
Very Shallow Mounting Depth
Designed for ultra-shallow installations (≈3.25–3.50 inches), permitting mounting close to enclosure rear walls and tight factory locations.
High Excursion Capability
Very long linear excursion (0.60 in / 15.2 mm one-way) for increased output and dynamic bass from extremely small enclosures.
Optimized Motor & Design
DMA-optimized motor designs, patented floating-cone-attach method, and no pole vent for reliable, low-distortion operation.
Durable Construction
Cast alloy frame, injection-molded mica-filled polypropylene cone, rubber surround, and aluminum-alloy dust/rear caps for long-lasting performance.
Small Enclosure Friendly
Very small sealed enclosure requirements and excellent performance in compact sealed or ported installs—ideal for depth-challenged vehicles.
Precision-Built in USA
Precision-built at JL Audio’s Miramar, Florida factory using global components for consistent quality and performance.
| General Specifications | |
| Continuous Power Handling (RMS) | 300 W |
| Recommended Amplifier Power (RMS) | 75 - 300 W |
| Nominal Impedance (Znom) | 4 Ω |
| Physical Specifications | |
| Nominal Diameter | 12.0 in / 300 mm |
| Overall Diameter (A) | 12.52 in / 318 mm |
| Mounting Hole Diameter (B) | 11.0625 in / 281 mm |
| Bolt Hole Circle Diameter (C) | 11.7 in / 297 mm |
| Motor Outer Diameter (D) | 5.05 in / 128 mm |
| Mounting Depth (E) | 5.40 in / 137 mm |
| Driver Displacement | 0.048 cu ft / 1.36 L |
| Net Weight | 8.11 lb / 3.68 kg |
| Parameters | |
| Free Air Resonance (Fs) | 28.43 Hz |
| Electrical “Q” (Qes) | 0.715 |
| Mechanical “Q” (Qms) | 10.709 |
| Total Speaker “Q” (Qts) | 0.67 |
| Equivalent Compliance (Vas) | 2.530 cu ft / 71.64 L |
| One-Way Linear Excursion (Xmax)* | 0.45 in / 11.4 mm |
| Reference Efficiency (no) | 0.22% |
| Efficiency (1 W / 1 m)** | 85.64 dB SPL |
| Effective Piston Area (Sd) | 74.509 sq in / 0.0481 sq m |
| DC Resistance (Re) | 4.280 Ω |
|
* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied. |
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- 1 x JL Audio 12" SUB 300 RMS 4Ω
Peace of Mind Purchase Guarantee
This product is supplied via JL Audio Australia and enjoys the FULL benefits of the 'Genuine JL Audio Australian Warranty'. (You may also be entitled to other consumer warranties as provided by the Australian Consumer Guarantee and these entitlements are not limited by this warranty). In the event that this product should fail please contact our service department or you can speak with JL Audio Australia directly.
We are a FULLY AUTHORISED Australian retailer for JL Audio Australia.
Disclaimer
Due to differing operating costs associated with selling products via different marketplaces, our pricing may vary.
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