8W7AE-3

8-inch (200 mm) Subwoofer Driver, 3 Ω

8W7AE-3

10th Anniversary Edition - W7 8-inch Subwoofer (500 W, 3 Ω)

This Subwoofer has been called the "best damn 8-inch subwoofer ever made" for its remarkable performance capabilities and design attributes. An impressive linear excursion envelope that exceeds 0.75 in. (19 mm) one-way allows it to deliver impact well beyond the range of other 8-inch Subwoofers.

The 8W7AE is best used with amplifier power in the 200W - 500W range and is optimized to operate in a 0.875 cu. ft. (24.8 l) sealed enclosure, or a 1.0 cu. ft. (28.3 l) ported enclosure.

W7AE (Anniversary Edition) Subwoofers celebrate the 10th Anniversary of the launch of the W7 subwoofers. Functionally, they are identical to the original W7's, but they are distinguished by the following cosmetic differences:

• Satin-Black Powdercoated Baskets
• Bright Anodized Surround Clamp Ring
• Anniversary Edition Cone Badge
• Anniversary Edition Terminal Label

General Specifications

Gen Specs
Continuous Power Handling (RMS)	500 W
Recommended Amplifier Power (RMS)	200 - 500 W
Nominal Impedance (Znom)	3 Ω
Physical Specifications
Nominal Diameter	8.0 in / 200 mm
Overall Diameter (A)	8.5 in / 216 mm
Mounting Hole Diameter (B)	6.94 in / 176 mm
Bolt Hole Circle Diameter (C)	7.39 in / 188 mm
Motor Outer Diameter (D)	5.79 in / 147 mm
Mounting Depth (E)	6.83 in / 173 mm
Driver Displacement	0.06 cu ft / 1.7 L
Net Weight	17 lb / 7.8 kg
Parameters
Free Air Resonance (Fs)	35.2 Hz
Electrical “Q” (Qes)	0.654
Mechanical “Q” (Qms)	9.5
Total Speaker “Q” (Qts)	0.612
Equivalent Compliance (Vas)	0.61 cu ft / 17.4 L
One-Way Linear Excursion (Xmax)*	0.75 in / 19 mm
Reference Efficiency (no)	0.11%
Efficiency (1 W / 1 m)**	82.7 dB SPL
Effective Piston Area (Sd)	38 sq in / 0.0245 sq m
DC Resistance (Re)	2.78 Ω
* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied. ** Efficiency (1 W / 1 m) 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”.
Sealed Enclosure Specifications
Wall Thickness	0.75 in / 19 mm
Front Baffle Thickness	0.75 in / 19 mm
Volume (net int.)	0.875 cu ft / 24.8 L
External Width (W)	12.875 in / 327 mm
External Height (H)	12.875 in / 327 mm
External Depth (D)	14 in / 356 mm
F3	41.3 Hz
Fc	45.9 Hz
Qtc	0.798
Ported Enclosure Specifications
Wall Thickness	0.75 in / 19 mm
Front Baffle Thickness	0.75 in / 19 mm
Volume (net int.)	1.00 cu ft / 28.3 L
External Width (W)	18.75 in / 476 mm
External Height (H)	12.875 in / 327 mm
External Depth (D)	14 in / 356 mm
Internal Slot Port Width (SW)	1.375 in / 35 mm
Internal Slot Port Height (SH)	11.375 in / 289 mm
Internal Slot Port Length (SL)	27.875 in / 708 mm
Port Extension Length (EL)	13.1875 in / 335 mm
Tuning Frequency (Fb)	36.8 Hz
F3	30.1 Hz

Enclosure Notes
Net volumes given above 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 W7’s employ a pole vent to remove heat and pressure from the inside of the speaker.This vent is located at the rear of the speaker. A minimum distance of 0.75 in (19 mm) is required between the back of the speaker and any wall of the enclosure to allow proper operation of the pole vent.
The dimensions given for the enclosure examples above take all applicable displacements into consideration
* All specifications are subject to change without notice.
Safety Notice
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.