JL Audio 8W7AE-3

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. Detailed enclosure recommendations can be found in the "Specifications" tab.

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 SpecificationsContinuous Power Handling (RMS)500 WRecommended Amplifier Power (RMS)200 - 500 WNominal Impedance (Znom)3 Ω

Physical SpecificationsNominal Diameter8.0 in / 200 mmOverall Diameter (A)8.5 in / 216 mmMounting Hole Diameter (B)6.94 in / 176 mmBolt Hole Circle Diameter (C)7.39 in / 188 mmMotor Outer Diameter (D)5.79 in / 147 mmMounting Depth (E)6.83 in / 173 mmDriver Displacement0.06 cu ft / 1.7 LNet Weight17 lb / 7.8 kg

ParametersFree Air Resonance (Fs)35.2 HzElectrical “Q” (Qes)0.654Mechanical “Q” (Qms)9.5Total Speaker “Q” (Qts)0.612Equivalent Compliance (Vas)0.61 cu ft / 17.4 LOne-Way Linear Excursion (Xmax)*0.75 in / 19 mmReference Efficiency (no)0.11%Efficiency (1 W / 1 m)**82.7 dB SPLEffective Piston Area (Sd)38 sq in / 0.0245 sq mDC 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 SpecificationsWall Thickness0.75 in / 19 mmFront Baffle Thickness0.75 in / 19 mmVolume (net int.)0.875 cu ft / 24.8 LExternal Width (W)12.875 in / 327 mmExternal Height (H)12.875 in / 327 mmExternal Depth (D)14 in / 356 mmF341.3 HzFc45.9 HzQtc0.798

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

Safety Notice
It is absolutely essential that the completed subwoofer enclosure is mounted firmly to the vehicle with heavy steel bolts (0.5 in 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.

Ported Enclosure SpecificationsWall Thickness0.75 in / 19 mmFront Baffle Thickness0.75 in / 19 mmVolume (net int.)1.00 cu ft / 28.3 LExternal Width (W)18.75 in / 476 mmExternal Height (H)12.875 in / 327 mmExternal Depth (D)14 in / 356 mmInternal Slot Port Width (SW)1.375 in / 35 mmInternal Slot Port Height (SH)11.375 in / 289 mmInternal Slot Port Length (SL)27.875 in / 708 mmPort Extension Length (EL)13.1875 in / 335 mmTuning Frequency (Fb)36.8 HzF330.1 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

Safety Notice
It is absolutely essential that the completed subwoofer enclosure is mounted firmly to the vehicle with heavy steel bolts (0.5 in 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.