JL AUDIO 12W3V3-4

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Continuous Power Handling (RMS)500 W
Recommended Amplifier Power (RMS)150 - 500 W
Nominal Impedance (Znom)4 Ω

Physical Specifications

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Nominal Diameter12.0 in / 300 mm
Overall Diameter (A)12.5 in / 318 mm
Mounting Hole Diameter (B)11.0625 in / 281 mm
Bolt Hole Circle Diameter (C)11.7 in / 297 mm
Motor Outer Diameter (D)5.5 in / 140 mm
Mounting Depth (E)6.65 in / 169 mm
Driver Displacement0.071 cu ft / 2.01 L
Net Weight14.50 lb / 6.58 kg

Parameters

Free Air Resonance (Fs)26.72 Hz
Electrical “Q” (Qes)0.472
Mechanical “Q” (Qms)7.572
Total Speaker “Q” (Qts)0.444
Equivalent Compliance (Vas)2.844 cu ft / 80.54 L
One-Way Linear Excursion (Xmax)*0.510 in / 13.0 mm
Reference Efficiency (no)0.31%
Efficiency (1 W / 1 m)**87.15 dB SPL
Effective Piston Area (Sd)80.600 sq in / 0.0520 sq m
DC Resistance (Re)3.563 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

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Wall Thickness0.75 in / 19 mm
Front Baffle Thickness0.75 in / 19 mm
Volume (net int.)1.125 cu ft / 31.8 L
External Width (W)21 in / 533 mm
External Height (H)14 in / 356 mm
External Depth (D)10 in / 254 mm
F343.7 Hz
Fc50.2 Hz
Qtc0.83

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. For assistance please contact your authorized JL Audio dealer or JL Audio Technical Support.
* We recommend the use of this speaker in a bi-amplified system using high-quality satellite speakers and a high-quality amplifier. We do not recommend the use of this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance.
* All specifications are subject to change without notice.

Ported Enclosure Specifications

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Wall Thickness0.75 in / 19 mm
Front Baffle Thickness0.75 in / 19 mm
Volume (net int.)1.75 cu ft / 49.6 L
External Width (W)29 in / 737 mm
External Height (H)14 in / 356 mm
External Depth (D)12.625 in / 321 mm
Internal Slot Port Width (SW)1.375 in / 35 mm
Internal Slot Port Height (SH)12.5 in / 318 mm
Internal Slot Port Length (SL)26.8125 in / 681 mm
Port Extension Length (EL)13.5 in / 343 mm
Tuning Frequency (Fb)30 Hz
F335 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. For assistance please contact your authorized JL Audio dealer or JL Audio Technical Support.
* We recommend the use of this speaker in a bi-amplified system using high-quality satellite speakers and a high-quality amplifier. We do not recommend the use of this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance.
* All specifications are subject to change without notice.