Focal P30

12" · 4 Ω · 300 W · 91 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	31.3 Hz
Qts	0.508
Qes	0.55
Qms	6.59
Vas	63.9 L
Sd	510.7 cm²
Xmax	7.4 mm
Re	3.6 Ω
Bl	13.8 T·m
Mms	148.1 g
Pe	300 W
Sensitivity	91 dB

Alignment hint

EBP	57 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 68.2 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
JBL STAGE 1210	31.7 +0.4	0.55 +0.04	64.6 +0.7	6.6 -0.8	90.8 -0.2	close	Xmax 6.6 mm < 7.4 mm: lower excursion-limited SPL	+
Wavecor SW310WA02	27.5 -3.8	0.52 +0.01	64.5 +0.6	7.4 =	89.9 -1.1	close		+
Monacor BLACKBASS-12 4 Ohms	29 -2.3	0.482 -0.03	61 -2.9	7.5 +0.1	90.1 -0.9	close		+
Powerbass S-1204D	31 -0.3	0.5 -0.01	65 +1.1	9.5 +2.1	87.2 -3.8	close		+
Wavecor SW312WA03	28 -3.3	0.479 -0.03	61 -2.9	7.3 -0.1	90.2 -0.8	close	Xmax 7.3 mm < 7.4 mm: lower excursion-limited SPL	+
MTX Audio RT12-04	28 -3.3	0.535 +0.03	68 +4.1	7.5 +0.1	90.1 -0.9	close		+
JBL GTO 1214D	28.3 -3	0.488 -0.02	66 +2.1	7.3 -0.1	92.9 +1.9	close	2 Ω vs 4 Ω: amp load changes · Xmax 7.3 mm < 7.4 mm: lower excursion-limited SPL	+
Bravox UXP12D-4	32 +0.7	0.496 -0.01	58 -5.9	7.5 +0.1	94.1 +3.1	close	2 Ω vs 4 Ω: amp load changes	+
Alpine SWS-1241	30 -1.3	0.563 +0.05	65 +1.1	6.7 -0.7	90.1 -0.9	close	200 W vs 300 W: lower power handling · Xmax 6.7 mm < 7.4 mm: lower excursion-limited SPL	+
Dayton Audio TS320D-4 TITANIC MK 4	28.3 -3	0.453 -0.05	64.1 +0.2	9.8 +2.4	90.7 -0.3	close		+

Compare the closest 3 against the P30 →

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.