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JL Audio 8W3v3-4 W3v3 Series 8-inch Subwoofer, 4 Ω
JL Audio 8W3v3-4 W3v3 Series 8-inch Subwoofer, 4 Ω
JL Audio 8W3v3-4 W3v3 Series 8-inch Subwoofer, 4 Ω
JL Audio 8W3v3-4 W3v3 Series 8-inch Subwoofer, 4 Ω

JL Audio 8W3v3-4 W3v3 Series 8-inch Subwoofer, 4 Ω

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W3v3 8-inch Subwoofer (250 W, 4 Ω)


 

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" below.

 

 

General Specifications
Power Chart for 8W3v3 Subwoofer with ideal Power Range of 75- 250 W
Continuous Power Handling (RMS) 250 W
Recommended Amplifier Power (RMS) 75- 250 W
Nominal Impedance (Znom) 4 Ω

 

 

Physical Specifications
Lineart Bottom-View and Side-View of 8W3v3 Subwoofer with dimension labels A-E
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

* 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
Lineart diagram of empty sealed enclosure with Height (H), Width (W) and Depth (D) and port length (L) and port inner-diameter (ID) dimension labels
Wall Thickness 0.75 in / 19 mm
Front Baffle Thickness 0.75 in / 19 mm
Volume (net int.) 0.30 cu ft / 8.5 L
External Width (W) 10 in / 254 mm
External Height (H) 10 in / 254 mm
External Depth (D) 9.5 in / 241 mm
F3 54 Hz
Fc 58.8 Hz
Qtc 0.783

Enclosure Notes
The enclosure recommendations listed above are external dimensions which assume the use of 0.75 in (19 mm) thick material. If you are using 0.625 in (16 mm) thick material, subtract 0.25 in (6.5 mm) from each dimension. Do not use any material with a thickness of less than 0.625 in (16 mm) as this may compromise the rigidity of the enclosure.
* All enclosure volumes listed above are net internal volumes! Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into account.
* When using multiple subwoofers in a common enclosure you will need to recalculate the enclosure and port dimensions.

 

 

Ported Enclosure Specifications
Lineart diagram of empty 90 degree ported enclosure with Height (H), Width (W) and Depth (D) and slot length (SL) and slot inner-diameter (ID) dimension labels
Wall Thickness 0.75 in / 19 mm
Front Baffle Thickness 0.75 in / 19 mm
Volume (net int.) 0.35 cu ft / 9.9 L
External Width (W) 13 in / 330 mm
External Height (H) 10 in / 254 mm
External Depth (D) 9.25 in / 203 mm
Internal Port Diameter (ID) 2 in / 51 mm
Port Length (L) 18 in / 457 mm (round port requires a 90º elbow to fit in the specified enclosure)
Tuning Frequency (Fb) 35 Hz
F3 41.0 Hz

Enclosure Notes
* The enclosure recommendations listed above are external dimensions which assume the use of 0.75 in (19 mm) thick material. If you are using 0.625 in (16 mm) thick material, subtract 0.25 in (6.5 mm) from each dimension. Do not use any material with a thickness of less than 0.625 in (16 mm) as this may compromise the rigidity of the enclosure.
* All enclosure volumes listed above are net internal volumes! Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into account.
* When using multiple subwoofers in a common enclosure you will need to recalculate the enclosure and port dimensions.