JL Audio 18W6 User Manual
Subwoofer specifi cations, Physical dimensions, Normal recommended enclosures
10W6
23.2 Hz
0.432
0.463
6.567
2.30
65.1
0.469
11.9
84.2 dB
53.6
0.0346
10.8
Ω
(in series)
Dual 6
Ω
300 Watts
12W6
20.9 Hz
0.433
0.462
6.897
5.73
162.3
0.438
11.1
86.9 dB
82.5
0.0532
10.8
Ω
(in series)
Dual 6
Ω
300 Watts
8W6
32.5 Hz
0.466
0.511
5.500
0.79
22.4
0.388
9.9
83.6 dB
30.7
0.0198
10.6
Ω
(in series)
Dual 6
Ω
200 Watts
Subwoofer Specifi cations
Fs (free-air resonance):
Qts (total speaker “Q”):
Qes (electrical “Q”):
Qms (mechanical “Q”):
Vas (equivalent compliance):
Xmax (linear excursion one-way):
Effi ciency (1W/1m)*:
Sd (effective piston surface area):
Re (DC resistance):
Znom (nominal impedance):
Pt (continuous thermal power handling):
Sealed Enclosure
•Enclosure dimensions listed are external dimensions which assume the use of 0.75 inch (19mm) thick material. If you are using
0.625 inch (16mm) thick material, subtract 0.25 inches (6.5mm) from each dimension. Do not use material with a thickness of
less than 0.625 inches (16mm).
•Enclosure volumes listed are NET internal volumes. Driver displacement, port displacement and brace displacement must be
added to obtain the fi nal gross volume. The dimensions listed have already taken this into account.
•When using two subwoofers in a common enclosure simply double the required volumes and use two of the recommended ports
(when needed). Likewise, when using three subwoofers in a common enclosure simply triple the required volume and number
of ports (when needed).
*Effi ciency (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”!
Ported Enclosure
H
D
W
H
D
W
ft
3
liters
in.
mm
ft
3
liters
in.
mm
ft
3
liters
in.
mm
Be sure to allow 0.75 inches (19mm) for pole vent clearance on this driver.
Physical Dimensions
Frame Diameter (A):
Mounting Hole Diameter (B):
Mounting Depth (C):
Overall Depth (D):
Magnet Diameter (E):
Displacement:
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
ft
3
liters
A
B
C
D
E
Normal Recommended Enclosures
(single driver)
Port
(inside dia. X length)
Model
Sealed
Enclosure
Ported
Enclosure
16” x 9” x 8”
406mm x 229mm x 203mm
8W6
15” x 10” x 12.25”
381mm x 254mm x 311mm
2.5” X 15.4”
0.375 ft
3
64mm X 391mm
0.625 ft
3
width X height X depth
Volume (
Net Int.
)
10.6 l
17.7 l
18” x 11” x 9”
457mm x 279mm x 229mm
10W6
17” x 12” x 13.75”
432mm x 305mm x 349mm
3” X 18.6”
0.625 ft
3
76mm X 472mm
1.00 ft
3
width X height X depth
Volume (
Net Int.
)
17.7 l
28.3 l
18” x 13” x 13.75”
457mm x 330mm x 349mm
12W6
20” x 14” x 17.75”
508mm x 356mm x 451mm
TWO 2.5” X 13.6”
1.25 ft
3
TWO 64mm X 345mm
2.25 ft
3
width X height X depth
Volume (
Net Int.
)
35.4 l
63.7 l
in
2
m
2
in
2
m
2
in
2
m
2
8.25
7
4.25
4.6875
4.875
0.035
209.55
177.8
107.95
119.06
123.82
0.989
in.
mm
in.
mm
mm
in.
mm
in.
mm
ft
3
liters
10.125
9.125
4.875
5.5
6.5
0.06
257.17
231.77
123.82
139.7
165.1
1.696
in.
in.
mm
in.
mm
mm
in.
mm
in.
mm
ft
3
liters
12.25
11.0625
5.625
6.5
6.5
0.085
311.15
280.98
142.87
165.1
165.1
2.403
in.
8W6
10W6
12W6