Focal P25FS

10" · 8 Ω · 280 W · 83.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	30 Hz
Qts	0.784
Qes	0.95
Qms	4.5
Vas	25 L
Sd	346 cm²
Xmax	6.4 mm
Re	4 Ω
Bl	12.2 T·m
Mms	188.9 g
Pe	280 W
Sensitivity	83.5 dB

Alignment hint

EBP	32 · 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
Focal P25 FSE	30 =	0.798 +0.01	25 =	6.5 +0.1	84.5 +1	close	4 Ω vs 8 Ω: amp load changes	+
Focal 10WM	31 +1	0.683 -0.1	28 +3	9.2 +2.8	85.4 +1.9	usable		+
Focal SUB10WM	31 +1	0.683 -0.1	28 +3	8.5 +2.1	86.5 +3	usable	4 Ω vs 8 Ω: amp load changes	+
Kenwood KFC-XW100F	38.6 +8.6	0.72 -0.06	21.05 -3.95	7.5 +1.1	83.4 -0.1	usable	4 Ω vs 8 Ω: amp load changes	+
Kenwood KFC-WPS1000F	38.6 +8.6	0.722 -0.06	21.05 -3.95	8 +1.6	83.4 -0.1	usable	4 Ω vs 8 Ω: amp load changes	+
Focal SUB25KXS	35 +5	0.812 +0.03	18 -7	7 +0.6	85 +1.5	usable	4 Ω vs 8 Ω: amp load changes	+
Audiomobile GTS 2110 S4	28 -2	0.59 -0.19	25.5 +0.5	12.2 +5.8	81 -2.5	usable	4 Ω vs 8 Ω: amp load changes	+
Alpine SWE-1042	33 +3	0.66 -0.12	33 +8	11.7 +5.3	84.1 +0.6	usable	4 Ω vs 8 Ω: amp load changes	+
JL Audio 10W6V3-D4	30.1 +0.1	0.513 -0.27	23.3 -1.7	10.5 +4.1	83.6 +0.1	usable		+
JL Audio 10TW3-D4	32.3 +2.3	0.62 -0.16	19.8 -5.2	7 +0.6	81.5 -2	usable	16 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the P25FS →

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.