JL Audio 12W1-8

12" · 8 Ω · 125 W · 88.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	24 Hz
Qts	0.49
Qes	0.519
Qms	8.897
Vas	177.29 L
Sd	506 cm²
Xmax	7.874 mm
Re	7.03 Ω
Bl	14.66 T·m
Mms	105.2 g
Pe	125 W
Sensitivity	88.6 dB

Alignment hint

EBP	46 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 163.8 L

EBP < 50: favours a sealed (closed) 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 12W1-4	22.3 -1.7	0.487 =	176.214 -1.08	7.874 =	87.6 -1	close	4 Ω vs 8 Ω: amp load changes	+
SB Acoustics SB34NRX75-6 vp fx	22.9 -1.1	0.496 +0.01	181.3 +4.01	11 +3.13	90.6 +2	close		+
AE Speakers SBP12-8	23.6 -0.4	0.479 -0.01	160 -17.29	14 +6.13	89.5 +0.9	close		+
JL Audio 12W0-8	23.2 -0.8	0.426 -0.06	159.989 -17.3	8.636 +0.76	88.3 -0.3	close		+
Peerless XXLS-830845	21.5 -2.5	0.448 -0.04	162.5 -14.79	7.6 -0.27	88.7 +0.1	close	Xmax 7.6 mm < 7.874 mm: lower excursion-limited SPL	+
Peerless XXLS308 SWR 51	21.5 -2.5	0.448 -0.04	162.5 -14.79	11.5 +3.63	88.7 +0.1	close		+
Peerless SLS315	24.4 +0.4	0.452 -0.04	205.2 +27.91	7.8 -0.07	91.4 +2.8	close	Xmax 7.8 mm < 7.874 mm: lower excursion-limited SPL	+
Ground Zero GZTW 12MK2 vp	22.5 -1.5	0.484 -0.01	148.6 -28.69	14.7 +6.83	89.9 +1.3	close		+
Rockford Fosgate R1S4-12	22 -2	0.493 =	197.2 +19.91	7 -0.87	91.5 +2.9	close	4 Ω vs 8 Ω: amp load changes · Xmax 7 mm < 7.874 mm: lower excursion-limited SPL	+
HiVi D10.8	24 =	0.413 -0.08	147.3 -29.99	8 +0.13	89.5 +0.9	close		+

Compare the closest 3 against the 12W1-8 →

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.