JL Audio 12W1v2-4 Owner's Manual page 3

SUBWOOFER
Volume
(net int.)
1.25 cu. ft.
12W1v2-4
35.4 litres
1.25 cu. ft.
12W1v2-8
35.4 litres
SUBWOOFER
Volume
(net int.)
1.75 cu. ft.
12W1v2-4
49.5 litres
1.75 cu. ft.
12W1v2-8
49.5 litres
1/4" (6.5mm)
5/8" (16mm)
the enclosure.
All enclosure volumes listed are net internal volumes!
two
double
recommended port(s).
amplified system
passive crossover (coil)
JL AUDIO 12W1v2-4/12W1v2-8
All specifications are subject to change without notice.
RECOMMENDED SEALED ENCLOSURES
External Dimensions
(Width x Height x Depth)
17.5 in. x 15.5 in. x 11.5 in.
444.5 mm x 394 mm x 292 mm
17.5 in. x 15.5 in. x 11.5 in.
444.5 mm x 394 mm x 292 mm
Enclosure External Dimensions
(Width x Height x Depth)
19.75 in. x 16 in. x 17 in.
502 mm x 406.5 mm x 432 mm
19.75 in. x 16 in. x 17 in.
502 mm x 406.5 mm x 432 mm
external
3/4" (19mm)
5/8" (16mm) thick
two times the
bi-
F3 Fc
(Hz) (Hz)
41.7 41.9
40.7 43.4
RECOMMENDED PORTED ENCLOSURES
(Slot Width x Slot Height x Slot Length)
Prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. This high-performance
speaker can exceed this level. Please exercise restraint in its operation in order to preserve your ability to enjoy its fidelity.
When installing a subwoofer in your vehicle, it is extremely important to secure the enclosure firmly. We recommend
bolting the enclosure through the metal of the floorpan or the frame of the vehicle with large diameter washers for
reinforcement. If an enclosure is not firmly attached, it can become a projectile in a collision. This is particularly important
in a hatchback, station wagon, sports utility vehicle, or van.
Qtc
0.733
0.796
Slot Port Internal Dimensions
1.5 in. x 14.5 in. x 33.75 in.
38 mm x 368 mm x 857 mm
1.5 in. x 14.5 in. x 33.75 in.
38 mm x 368 mm x 857 mm
"EL" (Port Extension Length):
12W1v2: 14.5 in. (368 mm)
Tune to: F3
(Hz) (Hz)
28.0 29.5
28.0 30.2
3