Description
If you need an 8-inch subwoofer that can create outstanding bass in extremely small enclosures, the 8W3v3 will do the job and surprise you with its power and accuracy. It employs the same technologies as its larger diameter brethren to deliver a whopping 0.375 in. (10 mm) of controlled, one-way, linear excursion.
The 8W3v3-4 is best used with amplifier power in the 75W – 250W range and is optimized to operate in a tiny 0.30 cu. ft. (8.5 l) sealed enclosure, or a 0.35 cu. ft. (9.9 l) ported enclosure. Detailed enclosure recommendations can be found in the “Specifications” tab.
Specifications
General Specifications 
| Continuous Power Handling (RMS) | 250 W |
| Recommended Amplifier Power (RMS) | 75- 250 W |
| Nominal Impedance (Znom) | 4 Ω |
Physical Specifications 
| Nominal Diameter | 8.0 in / 200 mm |
| Overall Diameter (A) | 8.54 in / 217 mm |
| Mounting Hole Diameter (B) | 7.09 in / 180 mm |
| Bolt Hole Circle Diameter (C) | 7.85 in / 199 mm |
| Motor Outer Diameter (D) | 4.75 in / 121 mm |
| Mounting Depth (E) | 4.63 in / 118 mm |
| Driver Displacement | 0.03 cu ft / 0.85 L |
| Net Weight | 8.2 lb / 3.7 kg |
Parameters
| Free Air Resonance (Fs) | 35.14 Hz |
| Electrical “Q” (Qes) | 0.501 |
| Mechanical “Q” (Qms) | 7.071 |
| Total Speaker “Q” (Qts) | 0.467 |
| Equivalent Compliance (Vas) | 0.54 cu ft / 15.29 L |
| One-Way Linear Excursion (Xmax)* | 0.375 in / 10.0 mm |
| Reference Efficiency (no) | 0.13% |
| Efficiency (1 W / 1 m)** | 83.24 dB SPL |
| Effective Piston Area (Sd) | 32.02 sq in / 0.021 sq m |
| DC Resistance (Re) | 3.77 Ω |
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* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied. |
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