JL AUDIO
8W1v2-4/8W1v2-8
3
SUBWOOFER
RECOMMENDED SEALED ENCLOSURES
Volume
(net int.)
External Dimensions
(
W
idth x
H
eight x
D
epth)
F3
(Hz)
Fc
(Hz)
Qtc
8W1v2-4
0.375 ft³
10.6 l
10.5 in x 10.5 in x 10 in
267 mm x 267 mm x 254 mm
52.5
57.4
0.78
8W1v2-8
0.375 ft³
10.6 l
10.5 in x 10.5 in x 10 in
267 mm x 267 mm x 254 mm
50.0
60.0
0.91
All specifications are subject to change without notice.
!!
CA
UTION
!!
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.
s4HE ENCLOSURE RECOMMENDATIONS LISTED ARE
external
DIMENSIONS WHICH ASSUME THE USE OF
3/4" (19mm)
THICK MATERIAL )F YOU ARE USING
5/8" (16mm)
THICK
MATERIALSUBTRACT
1/4" (6.5mm)
FROMEACHDIMENSION
$ONOTUSEANYMATERIALWITHATHICKNESSOFLESSTHAN
5/8" (16mm)
AS THIS MAY COMPROMISE THE RIGIDITY OF
THEENCLOSURE
s
All enclosure volumes listed are net internal volumes!
"OX VOLUME DISPLACEMENT PORT DISPLACEMENT AND
BRACEDISPLACEMENTMUSTBEADDEDTOOBTAINTHEFINAL
GROSSINTERNALVOLUME!LLENCLOSUREDIMENSIONSLISTED
HAVEALREADYTAKENTHISINTOACCOUNT
s7HEN USING
two
SUBWOOFERS IN A COMMON
ENCLOSURE SIMPLY
double
THE REQUIRED VOLUME AND
INTHECASEOFAPORTEDENCLOSUREUSE
two times
the
RECOMMENDEDPORTS
s7E RECOMMEND THE USE OF THIS SPEAKER IN A
bi-
amplified system
USINGHIGHQUALITYSATELLITESPEAKERS
ANDAMPLIFIERS7EDONOTRECOMMENDTHEUSEOF
THISSUBWOOFERWITHA
passive crossover (coil)
ASTHIS
TYPEOFDEVICEWILLADVERSELYAFFECTPERFORMANCE
SUBWOOFER
RECOMMENDED PORTED ENCLOSURES
Volume
(net int.)
Enclosure External Dimensions
(
W
idth x
H
eight x
D
epth)
Round Port Specs
(
I
NNER
D
IAMETERX
L
ength)
Port Information
Tune to:
(Hz)
F3
(Hz)
8W1v2-4
0.50 ft³
14.2 l
12.5 in x 10 in x 11.5 in
318 mm x 254 mm x 292 mm
2 in x 10 in
51 mm x 254 mm
2OUNDPORTREQUIRESAELBOW
TOFITINTHESPECIFIEDENCLOSURE
38
34.7
8W1v2-8
0.50 ft³
14.2 l
12.5 in x 10 in x 11.75 in
318 mm x 254 mm x 298 mm
2 in x 14 in
51 mm x 356 mm
2OUNDPORTREQUIRESAELBOW
TOFITINTHESPECIFIEDENCLOSURE
33
35.5
