B&C 12 PH 32

12" · 8 Ω · 250 W · 99.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	42 Hz
Qts	0.28
Qes	0.3
Qms	4.3
Vas	155 L
Sd	522 cm²
Xmax	3 mm
Re	5.8 Ω
Bl	13.4 T·m
Mms	35.4 g
Pe	250 W
Sensitivity	99.2 dB

Alignment hint

EBP	140 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 28.8 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
B&C 12PH32	42 =	0.28 =	155 =	3 =	97.7 -1.5	close		+
Fostex F 356	46.9 +4.9	0.272 -0.01	143 -12	2.6 -0.4	99.3 +0.1	close	60 W vs 250 W: lower power handling · Xmax 2.6 mm < 3 mm: lower excursion-limited SPL	+
Fane STUDIO 12B	47 +5	0.274 -0.01	144 -11	5.1 +2.1	100.8 +1.6	close		+
Eminence KAPPA-12A	45 +3	0.27 -0.01	112.1 -42.9	3.2 +0.2	99.3 +0.1	close		+
Eminence KAPPA 12	45 +3	0.27 -0.01	112.1 -42.9	3.2 +0.2	99.3 +0.1	close		+
Eminence KAPPA 12 A	45 +3	0.27 -0.01	112.1 -42.9	3.2 +0.2	99.3 +0.1	close		+
Supravox 285 GMF v2013	48 +6	0.29 +0.01	175 +20	4 +1	100.9 +1.7	close	70 W vs 250 W: lower power handling	+
Beyma 12G125	41 -1	0.269 -0.01	122 -33	4 +1	97.2 -2	close	125 W vs 250 W: lower power handling	+
Supravox 285 GMF v2019	47.8 +5.8	0.327 +0.05	157 +2	4 +1	99.9 +0.7	close	70 W vs 250 W: lower power handling	+
DAS Audio 12G	48 +6	0.267 -0.01	148 -7	6 +3	101 +1.8	close		+

Compare the closest 3 against the 12 PH 32 →

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.