JL Audio 12WX-4 User Manual
2
JL AUDIO
12WX-4
SUBWOOFER
12WX-4
Free Air Resonance (Fs): 27.43 Hz
Electrical “Q” (Qes): 0.596
Mechanical “Q” (Qms): 9.970
Total Speaker “Q” (Qts): 0.562
Equivalent Compliance (Vas): 3.337 ft
3
94.49 liters
One-way, Linear Excursion (Xmax)*: 0.375 in.
9.5 mm
Efficiency (1W/1m)**: 87.17 dB SPL
Effective Piston Area (Sd): 76.950 in
2
0.0496 m
2
DC Resistance (Re): 3.51 ohm
Nominal Impedance: 4 ohm
Power Handling (continuous): 200 W
* Xmax specifications are derived via one-way voice coil overhang method
with no correction factors applied.
** Efficiency (1W/1m) 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” !
A
B
E
D
C
12WX SUBWOOFER
PHYSICAL SPECIFICATIONS
Nominal Diameter: 12.0 in.
305 mm
Overall Diameter (A): 12.52 in.
318 mm
Mounting Hole Diameter (B): 11.0625 in.
281 mm
Bolt Hole Circle (C): 11.7 in.
297 mm
Magnet Diameter (D): 4.13 in
105 mm
Mounting Depth (E): 5.3 in.
135 mm
Net Weight: 5.8 lbs.
2.63 kg
Driver Displacement: 0.048 ft
3
1.36 liters
JL AUDIO
12WX-4
U.S. PATENT: #6,219,431