Focal P30FSE

12" · 4 Ω · 300 W · 85.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	30 Hz
Qts	1.101
Qes	1.3
Qms	7.2
Vas	42 L
Sd	510 cm²
Xmax	4.9 mm
Re	3.2 Ω
Bl	10.6 T·m
Mms	244.3 g
Pe	300 W
Sensitivity	85.4 dB

Alignment hint

EBP	23 · sealed
Sealed Vb (Qtc ≈ 0.71)	Qts too high

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
Xtant X2 1204	30.6 +0.6	0.961 -0.14	38.6 -3.4	6.6 +1.7	85.3 -0.1	close		+
Selenium 12SW13ADVC 4+4	37 +7	0.854 -0.25	47 +5	7 +2.1	86.2 +0.8	usable	8 Ω vs 4 Ω: amp load changes	+
Ground Zero GZIW 12XSPL-D2	32.5 +2.5	0.736 -0.36	40.4 -1.6	7.6 +2.7	87.1 +1.7	usable	8 Ω vs 4 Ω: amp load changes	+
Davis 31ST12	31 +1	0.813 -0.29	58 +16	4.1 -0.8	85.2 -0.2	usable	8 Ω vs 4 Ω: amp load changes · 100 W vs 300 W: lower power handling · Xmax 4.1 mm < 4.9 mm: lower excursion-limited SPL	+
Pioneer TS-W310	41 +11	1.162 +0.06	32.1 -9.9	4.3 -0.6	88.5 +3.1	usable	Xmax 4.3 mm < 4.9 mm: lower excursion-limited SPL	+
Pioneer TS-W309D4	37.2 +7.2	0.811 -0.29	33.8 -8.2	5.7 +0.8	86.4 +1	usable	8 Ω vs 4 Ω: amp load changes	+
Pioneer TS-W310D4	37 +7	0.778 -0.32	37.4 -4.6	6.2 +1.3	87 +1.6	usable	8 Ω vs 4 Ω: amp load changes	+
Sphynx SP-W12-GLB	32 +2	0.782 -0.32	65.9 +23.9	5.8 +0.9	86 +0.6	usable	8 Ω vs 4 Ω: amp load changes · 200 W vs 300 W: lower power handling	+
GRS 12SW-4	29.6 -0.4	0.991 -0.11	90 +48	4.5 -0.4	88.1 +2.7	usable	120 W vs 300 W: lower power handling · Xmax 4.5 mm < 4.9 mm: lower excursion-limited SPL	+
Powerbass S-12T	34.4 +4.4	0.634 -0.47	45.92 +3.92	6.9 +2	85.8 +0.4	usable		+

Compare the closest 3 against the P30FSE →

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.