JL Audio W3-Series 12-Inch 500-Watt Subwoofer Driver, 2-Ohm or 4-Ohm Single Voice Coil
This 12-inch W3v3 subwoofer driver by JL Audio delivers world-class sound quality in a 500W RMS power package.
The JL Audio 12W3v3-2 and 12W3v3-4 automotive subs are best used with an amplifier in the 150-Watt - 500-Watt RMS range and are optimized to operate in a compact 1.25 cu. ft. (35.4 l) sealed enclosure, or a 1.75 cu. ft. (49.6 l) ported enclosure.
General Specifications
Continuous Power Handling (RMS) |
500 W |
Recommended Amplifier Power (RMS) |
150 - 500 W |
Nominal Impedance (Znom) |
2 Ω |
Physical Specifications

Nominal Diameter |
12.0 in / 300 mm |
Overall Diameter (A) |
12.5 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) |
5.5 in / 140 mm |
Mounting Depth (E) |
6.65 in / 169 mm |
Driver Displacement |
0.071 cu ft / 2.01 L |
Net Weight |
14.50 lb / 6.58 kg |
Parameters
Free Air Resonance (Fs) |
27.97 Hz |
Electrical “Q” (Qes) |
0.534 |
Mechanical “Q” (Qms) |
7.678 |
Total Speaker “Q” (Qts) |
0.5 |
Equivalent Compliance (Vas) |
2.806 cu ft / 79.47 L |
One-Way Linear Excursion (Xmax)* |
0.510 in / 13.0 mm |
Reference Efficiency (no) |
0.31% |
Efficiency (1 W / 1 m)** |
87.15 dB SPL |
Effective Piston Area (Sd) |
80.600 sq in / 0.0520 sq m |
DC Resistance (Re) |
1.658 Ω |
* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied.
** Efficiency (1 W / 1 m) is not an accurate indicator of a subwoofer’s output capability and should not be used as a comparison to other subwoofers to determine which one is “louder”.