JL Audio W7-Series 8-Inch 500-Watt Subwoofer Driver, 3-Ohm SVC
This subwoofer driver 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 subwoofer drivers.
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. 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 are they distinguished by the following cosmetic differences:
- Satin-Black Powdercoated Baskets
- Bright Anodized Surround Clamp Ring
- Anniversary Edition Cone Badge
- Anniversary Edition Terminal Label
|Continuous Power Handling (RMS)||500 W|
|Recommended Amplifier Power (RMS)||200 - 500 W|
|Nominal Impedance (Znom)||3 Ω|
|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|
|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”.