Beyma HP12

12" · 8 Ω · 150 W · 95.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	36 Hz
Qts	0.401
Qes	0.48
Qms	2.43
Vas	200 L
Sd	550 cm²
Xmax	4 mm
Re	6.8 Ω
Bl	11.5 T·m
Mms	41.4 g
Pe	150 W
Sensitivity	95.6 dB

Alignment hint

EBP	75 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 94.8 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
Sonido SCW-300	35 -1	0.401 =	210 +10	4.5 +0.5	95 -0.6	close	50 W vs 150 W: lower power handling	+
Ardan PRO W-31	36.4 +0.4	0.382 -0.02	170.6 -29.4	4 =	95.3 -0.3	close		+
Davis 31ST12 v2018	34.1 -1.9	0.428 +0.03	195.7 -4.3	5 +1	93.9 -1.7	close	100 W vs 150 W: lower power handling	+
Davis 31TPG-A	37 +1	0.448 +0.05	213 +13	4.5 +0.5	96.5 +0.9	close		+
Tannoy DC 3134 CPA12	37.7 +1.7	0.369 -0.03	226.7 +26.7	5 +1	96.1 +0.5	close	16 Ω vs 8 Ω: amp load changes · 75 W vs 150 W: lower power handling	+
Davis 31TPA-12G	37 +1	0.448 +0.05	213.5 +13.5	4.5 +0.5	97.4 +1.8	close		+
Philips AD12100/M8	36 =	0.464 +0.06	193.3 -6.7	6.2 +2.2	94.6 -1	close	100 W vs 150 W: lower power handling	+
Cabasse 30M20	34 -2	0.454 +0.05	220 +20	4.6 +0.6	96 +0.4	close		+
Audio Dynamique AD31TPA12G	37.2 +1.2	0.448 +0.05	213.6 +13.6	5 +1	97.5 +1.9	close		+
Supravox 285 GMF vp5	35 -1	0.372 -0.03	150 -50	4 =	95.4 -0.2	close	70 W vs 150 W: lower power handling	+

Compare the closest 3 against the HP12 →

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.