Specifications; Recommended Enclosures - JL Audio 10W3 Owner's Manual

SUBWOOFER SPECIFICATIONS
SUBWOOFER: 8W3-D2 8W3-D4
Free Air Resonance (Fs): 34.3 Hz 35.3Hz
Electrical "Q" (Qes): 0.428
Mechanical "Q" (Qms): 6.850
Total Speaker "Q" (Qts): 0.403
Equiv. Compliance (Vas): 0.79 ft 3 0.79 ft
22.4 litres 22.4 litres
One-way, Linear Excursion: 0.39 in 0.39 in
(Xmax)* 9.9 mm 9.9 mm
Efficiency (1W/1m)**: 85.0 dB 84.6 dB
Effective Piston Area (Sd): 33.2 in 2 33.2 in
0.0214 m 2 0.0214 m
DC Resistance (Re)***: 3.39Ω 6.56Ω
Nominal Impedance: Dual 2Ω Dual 4Ω
Power Handling (continuous): 125W 125W
Mounting Depth: 4.25 in 4.25 in
108 mm 108 mm
Mounting Hole Diameter: 7.0 in
178 mm 178 mm
Driver Displacement: 0.035 ft 3 0.035 ft
1.0 litres 1.0 litres
*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".
***Re (DC resistance) is measured with the voice coils in series, for parallel-wired specification divide Re by 4. All other specifications remain the same.
W 3 VO I C E C O I L S I N S E R I E S :
W3-D6: 12.0Ω
AMPLIFIER W3-D4: 8.0Ω
W3-D2: 4.0Ω
W3-D6: 6.0Ω
W3-D4: 4.0Ω
AMPLIFIER
W3-D2: 2.0Ω
W3-D6: 4.0Ω
AMPLIFIER W3-D4: 2.7Ω
W3-D2: 1.3Ω
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8W3-D6 10W3-D2 10W3-D4
35.1 Hz 28.8 Hz 29.7 Hz
0.516 0.508 0.503 0.546
6.850 6.850 8.260 8.260
0.480 0.473 0.474 0.512
3 0.79 ft 3 1.66 ft 3 1.66 ft
22.4 litres 38.6 litres 38.6 litres
0.42 in 0.549 in 0.579 in
10.7 mm 13.9 mm 14.7 mm
84.6 dB 85.3 dB 85.3 dB
2 33.2 in 2 53.5 in 2 53.5 in
2 0.0214 m 2 0.0345 m 2 0.0345 m
10.78Ω 3.30Ω 6.82Ω
Dual 6Ω Dual 2Ω Dual 4Ω
125W 250W 250W
4.25 in 5.8125 in 5.8125 in
108 mm 148 mm 148 mm
7.0 in 7.0 in 9.125 in 9.125 in
178 mm 232 mm 232 mm
3 0.035 ft 3 0.050 ft 3 0.050 ft
1.0 litres 1.4 litres 1.4 litres
W 3 VO I C E C O I L S I N PA R A L L E L :
W3-D6: 3.0Ω
AMPLIFIER W3-D4: 2.0Ω
W3-D2: 1.0Ω
W3-D6: 1.5Ω
W3-D4: 1.0Ω
AMPLIFIER
W3-D2: 0.5Ω
AMPLIFIER
JL AUDIO 8W3/10W3

RECOMMENDED ENCLOSURES

10W3-D6 SUBWOOFER
30.8 Hz
0.563
8.260
8W3-D2
0.527
3 1.66 ft 3 8W3-D4
38.6 litres
8W3-D6
0.513 in
13.0 mm
10W3-D2
85.6 dB
2 53.5 in 2
10W3-D4
2 0.0345 m 2
10.98Ω
10W3-D6
Dual 6Ω
C A U T I O N
250W
Prolonged exposure to sound
5.8125 in
pressure levels in excess of 100dB
can cause permanent hearing loss.
148 mm
This high-performance speaker can
9.125 in
exceed this level. Please exercise
restraint in its operation in order
232 mm
to preserve your ability to enjoy
its fidelity.
3 0.050 ft 3
When installing a subwoofer
1.4 litres 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.
• The enclosure recommendations listed above
are external dimensions which assume the use
of 3/4" (19mm) thick material. If you are using
5/8" (16mm) thick material, subtract 1/4"
(6.5mm) from each dimension. Do not use any
material with a thickness of less than 5/8"
(16mm) as this may compromise the rigidity of
the enclosure.
W3-D6: 1.0Ω
• All enclosure volumes listed above are net
W3-D4: 0.7Ω
internal volumes! Driver displacement, port
W3-D2: 0.3Ω
JL AUDIO 8W3/10W3
SEALED ENCLOSURE
Volume External Dimensions Volume
(net int.) (Width x Height x Depth) (net int.)
0.330 ft 3 16" x 9" x 7.25" 0.75 ft 3
9.35 litres 406mm x 229mm x 184mm 21.2 litres
0.375 ft 3 16" x 9" x 8" 0.75 ft 3
10.6 litres 406mm x 229mm x 203mm 21.2 litres
0.375 ft 3 16" x 9" x 8" 0.75 ft 3
10.6 litres 406mm x 229mm x 203mm 21.2 litres
0.625 ft 3 18" x 11" x 9" 1.00 ft 3
17.7 litres 457mm x 279mm x 229mm 28.3 litres
0.625 ft 3 18" x 11" x 9" 1.125 ft 3
17.7 litres 457mm x 279mm x 229mm 31.9 litres
0.75 ft 3 18" x 11" x 10.5" 1.25 ft 3
21.2 litres 457mm x 279mm x 267mm 35.4 litres
displacement and brace displacement must be
added to obtain the final gross internal volume.
All enclosure dimensions above have already
taken this into acount.
• When using two subwoofers in a common
enclosure simply double the required volume
and, in the case of a ported enclosure, use two
times the recommended port(s). Likewise,
when using three subwoofers in a common
enclosure simply triple the required volume
PORTED ENCLOSURE
External Dimensions Port
(Width x Height x Depth) (Inside Dia. x Length)
15" x 10" x 13.75" 2.5" x 12.7"
381mm x 254mm x 349mm 64mm x 323mm
15" x 10" x 13.75" 2.5" x 11.9"
381mm x 254mm x 349mm 64mm x 302mm
15" x 10" x 13.75" 2.5" x 12.1"
381mm x 254mm x 349mm 64mm x 307mm
16" x 11" x 15.5" 3.0" x 14.5"
406mm x 279mm x 394mm 76mm x 368mm
16" x 11" x 17" 3.0" x 12.8"
406mm x 279mm x 432mm 76mm x 325mm
16" x 11" x 18.5" 3.0" x 11.3"
406mm x 279mm x 470mm 76mm x 287mm
and, in the case of a ported enclosure, use
three times the recommended port(s).
• We recommend the use of this speaker in a
bi-amplified system using high-quality satellite
speakers and a high-quality amplifier. We do
not recommend the use of this subwoofer
with a passive crossover (coil), as this type of
device will adversely affect performance.
All specifications are subject to change without notice.
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