Beyma POWER 12

12" · 4 Ω · 500 W · 93.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	45 Hz
Qts	0.378
Qes	0.41
Qms	4.8
Vas	31.6 L
Sd	550 cm²
Xmax	4.5 mm
Re	3.7 Ω
Bl	20.7 T·m
Mms	167.9 g
Pe	500 W
Sensitivity	93.8 dB

Alignment hint

EBP	110 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 12.6 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
Focal 13W 7653	46 +1	0.391 +0.01	30.9 -0.7	4.2 -0.3	94.5 +0.7	close	Xmax 4.2 mm < 4.5 mm: lower excursion-limited SPL	+
B&C 12 BG 76	44 -1	0.409 +0.03	32 +0.4	5.1 +0.6	91.6 -2.2	close	8 Ω vs 4 Ω: amp load changes	+
B&C 12BG76	44 -1	0.41 +0.03	32 +0.4	9.5 +5	92 -1.8	close	8 Ω vs 4 Ω: amp load changes	+
Ciare 12.00 SW	43.61 -1.39	0.38 =	32 +0.4	11.5 +7	90.1 -3.7	close	8 Ω vs 4 Ω: amp load changes	+
PD PDN 12SB40	47.2 +2.2	0.382 =	45.1 +13.5	6 +1.5	94.2 +0.4	close	8 Ω vs 4 Ω: amp load changes	+
Precision Devices PDN 12SB40	47.2 +2.2	0.382 =	45.1 +13.5	6 +1.5	94.2 +0.4	close	8 Ω vs 4 Ω: amp load changes	+
Fountek FW322 - 4 Ohms	41.8 -3.2	0.36 -0.02	40.6 +9	4 -0.5	94.1 +0.3	usable	300 W vs 500 W: lower power handling · Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
Ciare PW331	44 -1	0.378 =	32 +0.4	2.9 -1.6	91.1 -2.7	usable	8 Ω vs 4 Ω: amp load changes · 150 W vs 500 W: lower power handling · Xmax 2.9 mm < 4.5 mm: lower excursion-limited SPL	+
Faital PRO 12RS1066	42 -3	0.33 -0.05	31.5 -0.1	12.45 +7.95	93 -0.8	usable	8 Ω vs 4 Ω: amp load changes	+
Faital PRO 12HP1060 8 Ohms	45 =	0.283 -0.1	30.1 -1.5	6.4 +1.9	93.8 =	usable	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the POWER 12 →

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.