JL Audio 12W1V2-4

12" · 4 Ω · 300 W · 86.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	23.68 Hz
Qts	0.414
Qes	0.443
Qms	6.465
Vas	105.876 L
Sd	525 cm²
Xmax	9.5 mm
Re	4.104 Ω
Bl	15.16 T·m
Mms	166.7 g
Pe	300 W
Sensitivity	86.9 dB

Alignment hint

EBP	53 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 55.2 L

EBP 50-100: works in either a sealed or ported alignment.

Rules of thumb from T/S parameters only. Verify against a real simulation before cutting wood.

Substitute candidates

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
JL Audio 13W6V2-D4	24.3 +0.62	0.434 +0.02	111.6 +5.72	10.6 +1.1	88.3 +1.4	close	8 Ω vs 4 Ω: amp load changes	+
JL Audio 12W1V2-8	24.98 +1.3	0.458 +0.04	100.15 -5.73	9.5 =	86.8 -0.1	close	8 Ω vs 4 Ω: amp load changes	+
Infinity KAPPA PERFECT 12.1	23.32 -0.36	0.44 +0.03	99.97 -5.91	14.15 +4.65	86.2 -0.7	close		+
CSS Audio TRIO12 vp	22 -1.68	0.429 +0.02	97 -8.88	10 +0.5	88.5 +1.6	close	8 Ω vs 4 Ω: amp load changes	+
Dayton Audio RSS315HFA-8 v2016	22.2 -1.48	0.444 +0.03	97.2 -8.68	11 +1.5	85.8 -1.1	close	8 Ω vs 4 Ω: amp load changes	+
Dayton Audio DSC305-4	23 -0.68	0.408 -0.01	116 +10.12	9.3 -0.2	91 +4.1	close	Xmax 9.3 mm < 9.5 mm: lower excursion-limited SPL	+
Dayton Audio DCS305-4	22.9 -0.78	0.408 -0.01	116.6 +10.72	9.3 -0.2	91 +4.1	close	Xmax 9.3 mm < 9.5 mm: lower excursion-limited SPL	+
Focal AUDITOR RSB-300	25 +1.32	0.466 +0.05	93 -12.88	10.2 +0.7	87.4 +0.5	close	8 Ω vs 4 Ω: amp load changes	+
Focal SUB12	24 +0.32	0.407 -0.01	90 -15.88	9.8 +0.3	90.7 +3.8	close		+
Ground Zero GZUW 300SQ	25.3 +1.62	0.423 +0.01	86.6 -19.28	12.9 +3.4	88 +1.1	close	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the 12W1V2-4 →

Ranked on parameter similarity only (Qts, Fs, Vas, Xmax, sensitivity). Same nominal size required. A hint, not a simulation, model the swap before cutting or buying.

Used in enclosures (0)

No enclosure in the catalog uses this driver yet.