JL Audio 8W1v3-4 8" inch Subwoofer, 4 Ohm, Single Voice Coil, 150 Watts 92079

The 8W1v3 is an outstanding choice when space is very tight and amplifier power is moderate. It features shallow mounting depth (3.86 in. / 98 mm) and a compact motor structure, allowing it to comfortably fit in a lot of spaces where a typical 8-inch driver will not. Lacking a pole vent, the rear of the motor structure can be placed directly against an enclosure boundary. Excellent excursion capability and linearity allow it to reproduce sub-bass with shocking extension and quality. Several of JL Audio's proprietary technologies enhance its performance and reliability.

The 8W1v3-4 is best used with amplifier power in the 50W - 150W range and is optimized to operate in a compact 0.350 cu. ft. (9.90 l) sealed enclosure. Detailed enclosure recommendations can be found in the "Specifications" tab.

General Specifications

Continuous Power Handling (RMS)	150 W
Recommended Amplifier Power (RMS)	50 - 150 W
Nominal Impedance (Znom)	4 Ω

 

Physical Specifications

Nominal Diameter	8.0 in / 200 mm
Overall Diameter (A)	8.5 in / 216 mm
Mounting Hole Diameter (B)	7.09 in / 180 mm
Bolt Hole Circle Diameter (C)	7.85 in / 199 mm
Motor Outer Diameter (D)	4.72 in / 120 mm
Mounting Depth (E)	3.86 in / 98 mm
Driver Displacement	0.018 cu ft / 0.51 L
Net Weight	7.4 lb / 3.4 kg

 

Parameters

Free Air Resonance (Fs)	35.40 Hz
Electrical “Q” (Qes)	0.451
Mechanical “Q” (Qms)	5.791
Total Speaker “Q” (Qts)	0.418
Equivalent Compliance (Vas)	0.68 cu ft / 19.26 L
One-Way Linear Excursion (Xmax)*	0.3 in / 8 mm
Reference Efficiency (no)	0.18%
Efficiency (1 W / 1 m)**	84.8 dB SPL
Effective Piston Area (Sd)	32.67 sq in / 0.0211 sq m
DC Resistance (Re)	4.06 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.)	0.350 cu ft / 9.90 L
External Width (W)	12 in / 305 mm
External Height (H)	10 in / 254 mm
External Depth (D)	8.625 in / 219 mm
F3	59.9 Hz
Fc	60.7 Hz
Qtc	0.717
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.

 

Ported Enclosure Specifications

Wall Thickness	0.75 in / 19 mm
Front Baffle Thickness	0.75 in / 19 mm
Volume (net int.)	0.50 cu ft / 14.2 L
External Width (W)	13.0 in / 330 mm
External Height (H)	10 in / 254 mm
External Depth (D)	11.125 in / 283 mm
Internal Port Diameter (ID)	2 in / 51 mm
Port Length (L)	10 in / 254 mm
Tuning Frequency (Fb)	38 Hz
F3	39.10 Hz