2
JL AUDIO
12W1v2-4/12W1v2-8
SUBWOOFER
12W1v2-4
12W1v2-8
Free Air Resonance (Fs):
23.68 Hz
24.98 Hz
Electrical “Q” (Qes):
0.443
0.493
Mechanical “Q” (Qms):
6.465
6.451
Total Speaker “Q”
(Qts):
0.414
0.458
Equivalent Compliance (Vas):
3.739 cu. ft.
105.81 litres
3.539 cu. ft.
100.15 litres
One-way, Linear Excursion (Xmax)*:
0.375 in
9.5 mm
0.375 in
9.5 mm
Efficiency (1W/1m)**:
86.81 dB SPL
86.80 dB SPL
Effective Piston Area (Sd):
81.392 sq. in.
0.0525 sq. m.
81.392 sq. in.
0.0525 sq. m.
DC Resistance (Re):
4.104 ohm
6.747 ohm
Nominal Impedance:
4 ohm
8 ohm
Power Handling (continuous):
300W
300W
* 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” !
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12W1v2 SUBWOOFER PHYSICAL
SPECIFICATIONS
Nominal Diameter:
12 in
300 mm
Overall Diameter (A):
12.5 in
317.5 mm
Mounting Hole Diameter (B):
11.0625 in
281 mm
Bolt Hole Circle (C):
11.7 in
297 mm
Magnet Diameter (D):
4.75 in
121 mm
Mounting Depth (E):
5.09 in
130 mm
Net Weight:
8.61 lbs.
3.90 Kg
Driver Displacement:
0.035 cu. ft.
0.99 litres
JL AUDIO
12W1v2-4 / 12W1v2-8
530!4%.43$/THER53&OREIGNPATENTSPENDING
