he 12W1v2 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 12W1v2-4 is best used with amplifier power in the 75W – 300W range and is optimized to operate in a compact 1.25 cu. ft. (35.4 l) sealed enclosure, or a 1.75 cu. ft. (49.5 l) ported enclosure. Detailed enclosure recommendations can be found in the “Specifications” tab.
Free Air Resonance (Fs) 23.68 Hz
Electrical “Q” (Qes) 0.443
Mechanical “Q” (Qms) 6.465
Total Speaker “Q” (Qts) 0.414
Equivalent Compliance (Vas) 3.739 cu ft / 105.81 L
One-Way Linear Excursion (Xmax)* 0.375 in / 10 mm
Reference Efficiency (no) 0.300%
Efficiency (1 W / 1 m)** 86.81 dB SPL
Effective Piston Area (Sd) 81.392 sq in / 0.0525 sq m
DC Resistance (Re) 4.101 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”
MS

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