JB Systems PWX12-200

12" · 8 Ω · 200 W · 96.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	59.4 Hz
Qts	0.474
Qes	0.55
Qms	3.41
Vas	55.5 L
Sd	530.9 cm²
Xmax	3.6 mm
Re	6 Ω
Bl	14.4 T·m
Mms	51.2 g
Pe	200 W
Sensitivity	96.5 dB

Alignment hint

EBP	108 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 45.3 L

EBP > 100: favours a ported (bass-reflex) 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
P.Audio E12-200S	59.7 +0.3	0.475 =	49.1 -6.4	3.5 -0.1	96.6 +0.1	close	Xmax 3.5 mm < 3.6 mm: lower excursion-limited SPL	+
Celestion BN12-300X	56.2 -3.2	0.479 +0.01	61.2 +5.7	4 +0.4	96.1 -0.4	close		+
RCF L12CX2K	59.7 +0.3	0.46 -0.01	65 +9.5	4 +0.4	96.3 -0.2	close	75 W vs 200 W: lower power handling	+
Celestion TF 1225	63 +3.6	0.5 +0.03	54.5 -1	3.5 -0.1	97.9 +1.4	close	Xmax 3.5 mm < 3.6 mm: lower excursion-limited SPL	+
Faital PRO 12FH520	55 -4.4	0.47 =	56.4 +0.9	7 +3.4	97 +0.5	close	16 Ω vs 8 Ω: amp load changes	+
Fane SOVEREIGN 12-300 vp	54 -5.4	0.455 -0.02	59 +3.5	4.5 +0.9	96.2 -0.3	close		+
Faital PRO 12HX230	55 -4.4	0.433 -0.04	56.6 +1.1	4.7 +1.1	96.9 +0.4	close		+
P.Audio E12-300S	62 +2.6	0.49 +0.02	49.05 -6.45	3.4 -0.2	95.3 -1.2	close	Xmax 3.4 mm < 3.6 mm: lower excursion-limited SPL	+
Celestion TF 1225E	60.7 +1.3	0.414 -0.06	50.8 -4.7	3.5 -0.1	96.8 +0.3	close	Xmax 3.5 mm < 3.6 mm: lower excursion-limited SPL	+
Celestion TF1230	59 -0.4	0.515 +0.04	51.25 -4.25	4.8 +1.2	94 -2.5	close		+

Compare the closest 3 against the PWX12-200 →

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.