JL Audio W6-Series 6.5-Inch 150-Watt Subwoofer Driver, 4-Ohm
If you need a small-format subwoofer that really delivers in extremely small enclosures, this is where your search ends. The 6W3v3 is a true subwoofer, through-and-through. It employs the same technologies as its larger diameter brethren to deliver a whopping 0.35 in. (8.9 mm) one-way linear excursion.
The 6W3v3-4 is best used with amplifier power in the 50W - 150W range and is optimized to operate in a tiny 0.15 cu. ft. (4.2 l) sealed enclosure, or a 0.25 cu. ft. ported enclosure. Detailed enclosure recommendations can be found in the "Specifications" tab.
General Specifications
Continuous Power Handling (RMS) |
150 W |
Recommended Amplifier Power (RMS) |
50 - 150 W |
Nominal Impedance (Znom) |
4 Ω |
Physical Specifications

Nominal Diameter |
6.5 in / 165 mm |
Overall Diameter (A) |
6.85 in / 174 mm |
Mounting Hole Diameter (B) |
5.5 in / 140 mm |
Bolt Hole Circle Diameter (C) |
6.125 in / 156 mm |
Motor Outer Diameter (D) |
4.25 in / 108 mm |
Mounting Depth (E) |
4.25 in / 108 mm |
Driver Displacement |
0.02 cu ft / 0.57 L |
Net Weight |
6.1 lb / 2.8 kg |
Parameters
Free Air Resonance (Fs) |
41.80 Hz |
Electrical “Q” (Qes) |
0.533 |
Mechanical “Q” (Qms) |
11.027 |
Total Speaker “Q” (Qts) |
0.508 |
Equivalent Compliance (Vas) |
0.181 cu ft / 5.13 L |
One-Way Linear Excursion (Xmax)* |
0.35 in / 8.89 mm |
Reference Efficiency (no) |
0.07% |
Efficiency (1 W / 1 m)** |
80.49 dB SPL |
Effective Piston Area (Sd) |
17.36 sq in / 0.0112 sq m |
DC Resistance (Re) |
3.476 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”.