Description
The 12W1v3 is a lightweight 12-inch driver with excellent performance capabilities at moderate power levels. It features moderate mounting depth with no pole-vent, so the rear of the motor structure can be placed directly against an enclosure boundary. Excellent excursion capability and linearity allow it to reproduce sub-bass with shocking extension and quality. Several of JL Audio’s proprietary technologies enhance its performance and reliability.
The 12W1v3-2 is best used with amplifier power in the 75W – 300W range and is optimized to operate in a compact 1.10 cu. ft. (31.5 l) sealed enclosure. Detailed enclosure recommendations can be found in the “Specifications” tab.
Specifications
General Specifications 
| Continuous Power Handling (RMS) | 300 W |
| Recommended Amplifier Power (RMS) | 75 – 300 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) | 5.25 in / 133 mm |
| Mounting Depth (E) | 5.41 in / 137 mm |
| Driver Displacement | 0.052 cu ft / 1.47 L |
| Net Weight | 12.2 lb / 5.5 kg |
Parameters
| Free Air Resonance (Fs) | 26.55 Hz |
| Electrical “Q” (Qes) | 0.554 |
| Mechanical “Q” (Qms) | 8.731 |
| Total Speaker “Q” (Qts) | 0.521 |
| Equivalent Compliance (Vas) | 2.544 cu ft / 72.04 L |
| One-Way Linear Excursion (Xmax)* | 0.45 in / 11 mm |
| Reference Efficiency (no) | 0.23% |
| Efficiency (1 W / 1 m)** | 85.9 dB SPL |
| Effective Piston Area (Sd) | 81.426 sq in / 0.0525 sq m |
| DC Resistance (Re) | 2.210 Ω |
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* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied. |
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