Driver Specifications
Grille Clearance: 2.7 in. (69 mm) from the bottom of the mounting | Mounting Hardware: Twelve #12 x 1.75" long clear, | ||||||
flange to the lowest inside surface of the grille. | Phillips | ||||||
Displacement: 0.21 cu. ft. (5.9 ltrs) | steel Phillips | ||||||
Net Weight: 52 lbs. (23.6 kg) | (not included). | ||||||
Unpacking/Mounting: Please refer to the “How to: Mount a W7 | |||||||
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| Subwoofer ” on pages 4 & 5 for detailed, | |||
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| Bolt Hole |
| Circle |
Mounting | 12.7 in. |
Hole | (323 mm) |
Diameter | 12 Holes |
11.9 in. |
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(302 mm) |
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Magnet |
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Diameter |
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8.38 in. | Overall |
(213 mm) | |
| Diameter |
| 14 in. |
| (356 mm) |
Mounting
Depth
10.5in.
(267 mm)
Overall
Depth
12 in.
(305 mm)
Enclosure Specifications
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.
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.
External Depth | External Depth | Slot Length |
16.5 in. | 16.5 in. | 25.375 in. |
(419 mm) | (419 mm) | (645 mm) |
External Height
17.25in. (438 mm)
External Width 17.0 in. (432mm)
External Height
17.25in. (438 mm)
Slot Height
15.75in. (400 mm)
External Width 25.125 in. (638 mm)
Slot Width |
2.0 in. |
(51 mm) |
Extension Length |
7.875 in. |
(200 mm) |
Slot Width
2.0in.
(51 mm)
SEALED ENCLOSURE: | PORTED ENCLOSURE: |
Recommended Net Volume: 1.875 cu. ft. (53.1 ltrs.) | Recommended Net Volume: 2.375 cu. ft. (67.3 ltrs.) |
Fc: 40.8 Hz F3: 36.3 Hz Qtc: 0.806 | Recommended Port Tuning: 30 Hz |
Front Baffle Thickness: 1 in. (25 mm) | Port Type: “Slot” ports are recommended. See information above. |
Wall Thickness: 0.75 in. (19 mm) | 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) |
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