PRECISION
BUILT
IN U.S.A.
13W7AE Subwoofer:
Driver & Enclosure Specifications
Grille Clearance:
2.7 in. (69 mm) from the bottom of the
mounting flange to the lowest inside surface of the grille.
Displacement:
0.21 cu. ft. (5.9 ltrs)
Net Weight:
52 lbs. (23.6 kg)
Mounting Hardware:
Twelve #12 x 1.75" long clear, zinc-plated
steel Phillips pan-head sheet metal screws (included)
or
twelve
#12-28 long steel Phillips pan-head machine screws with #12-28
T-Nuts, each at least 1/2-inch (12.5 mm) longer than the thickness
of the mounting baffle (not included).
Unpacking/Mounting:
Please refer to the “How to: Mount a W7AE
Subwoofer ” on pages 4 & 5 for detailed, step-by-step instructions.
PORTED ENCLOSURE:
Recommended Net Volume:
2.375 cu. ft. (67.3 ltrs.)
Recommended Port Tuning:
30 Hz
Port Type:
“Slot” ports are recommended. See information above.
The port recommendations listed above are derived through actual tests and
measurements (not computer simulations).
Front Baffle Thickness:
1 in. (25 mm)
Wall Thickness:
0.75 in. (19 mm)
Net volumes given below do not include the air volume displaced by the speaker
(Driver Displacement). This value must be added to the net volume along with the
displacement of any braces and/or ports (if applicable) to arrive at a gross internal
volume. Air inside a port is not part of the effective net volume. Calculate ports as
solid, not hollow objects.
The dimensions given for the enclosure examples below take all applicable
displacements into consideration.
SEALED ENCLOSURE:
Recommended Net Volume:
1.875 cu. ft. (53.1 ltrs.)
Fc:
40.8 Hz
F3:
36.3 Hz
Qtc:
0.806
Front Baffle Thickness:
1 in. (25 mm)
Wall Thickness:
0.75 in. (19 mm)
Overall
Diameter
14 in.
(356 mm)
Bolt Hole
Circle
12.7 in.
(323 mm)
12 Holes
Magnet
Diameter
8.38 in.
(213 mm)
Mounting
Hole
Diameter
11.9 in.
(302 mm)
Overall
Depth
12 in.
(305 mm)
Mounting
Depth
10.5 in.
(267 mm)
External Width
17.0 in.
(432mm)
External Height
17.25 in.
(438 mm)
External Depth
16.5 in.
(419 mm)
External Width
25.0 in.
(635 mm)
External Height
17.25 in.
(438 mm)
External Depth
16.5 in.
(419 mm)
Slot Height
15.75 in.
(400 mm)
Extension Length
7.875 in.
(200 mm)
Slot Width
2.0 in.
(51 mm)
Slot Width
2.0 in.
(51 mm)
Slot Port Depth
25.375 in.
(645 mm)
SAFETY NOTICE!
It is absolutely essential that the completed subwoofer enclosure
is mounted firmly to the vehicle with heavy steel bolts (1/2 inch
diameter) and large steel washers on both sides of the bolts. This
will reduce the likelihood of occupant injury in the event of a
collision or sudden deceleration.
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