Beyma 12AG

12" · 8 Ω · 80 W · 96.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	60 Hz
Qts	0.709
Qes	0.9
Qms	3.35
Vas	92 L
Sd	540 cm²
Xmax	1.5 mm
Re	6.5 Ω
Bl	9.2 T·m
Mms	31.3 g
Pe	80 W
Sensitivity	96.3 dB

Alignment hint

EBP	67 · flexible
Sealed Vb (Qtc ≈ 0.71)	Qts too high

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
Eminence GAMMA 12	57 -3	0.676 -0.03	74.1 -17.9	1.6 +0.1	95.5 -0.8	close		+
Eminence GAMMA 12 A	57 -3	0.676 -0.03	74.1 -17.9	1.6 +0.1	95.5 -0.8	close		+
Fostex PS 300	58 -2	0.857 +0.15	102.2 +10.2	1.9 +0.4	95.8 -0.5	close		+
Selenium 12PW3-SLF	50 -10	0.685 -0.02	97 +5	1.3 -0.2	95 -1.3	close	Xmax 1.3 mm < 1.5 mm: lower excursion-limited SPL	+
Cabasse 30M20S	60 =	0.635 -0.07	99.4 +7.4	4.5 +3	94.8 -1.5	usable	16 Ω vs 8 Ω: amp load changes	+
Selenium 12PW3	50 -10	0.69 -0.02	97 +5	1.25 -0.25	93.9 -2.4	usable	Xmax 1.25 mm < 1.5 mm: lower excursion-limited SPL	+
SICA 12 D 1.5 CS 8 Ohms	62 +2	0.748 +0.04	63.5 -28.5	2.7 +1.2	96.8 +0.5	usable		+
Sica 12 D 1.5 CS	62 +2	0.75 +0.04	63.5 -28.5	2.7 +1.2	96.9 +0.6	usable		+
Peavey S-12825	59.4 -0.6	0.611 -0.1	66.6 -25.4	2.5 +1	96.8 +0.5	usable		+
Selenium 12PW3-4	52 -8	0.592 -0.12	86 -6	1.3 -0.2	97.8 +1.5	usable	Xmax 1.3 mm < 1.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 12AG →

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.