Eminence GAMMA 12

12" · 8 Ω · 300 W · 95.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	57 Hz
Qts	0.676
Qes	0.75
Qms	6.86
Vas	74.1 L
Sd	506.7 cm²
Xmax	1.6 mm
Re	6.52 Ω
Bl	10.9 T·m
Mms	37.9 g
Pe	300 W
Sensitivity	95.5 dB

Alignment hint

EBP	76 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 787 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
Eminence GAMMA 12 A	57 =	0.676 =	74.1 =	1.6 =	95.5 =	close		+
Supravox T285HF64	55 -2	0.6 -0.08	74.6 +0.5	3.3 +1.7	95.6 +0.1	close	70 W vs 300 W: lower power handling	+
Beyma 12AG	60 +3	0.709 +0.03	92 +17.9	1.5 -0.1	96.3 +0.8	close	80 W vs 300 W: lower power handling · Xmax 1.5 mm < 1.6 mm: lower excursion-limited SPL	+
Peavey S-12825	59.4 +2.4	0.611 -0.07	66.6 -7.5	2.5 +0.9	96.8 +1.3	close	200 W vs 300 W: lower power handling	+
Fane 12-250TC SOVEREIGN	50 -7	0.658 -0.02	78.1 +4	3.5 +1.9	93.8 -1.7	close		+
Fane SOVEREIGN 12-250TC	50 -7	0.658 -0.02	78.1 +4	3.5 +1.9	93.8 -1.7	close		+
Faital PRO 12PR310	55 -2	0.67 -0.01	65.1 -9	4.92 +3.32	98 +2.5	usable	16 Ω vs 8 Ω: amp load changes	+
Mercuriale PTR 306 M0	58 +1	0.808 +0.13	70.1 -4	3.9 +2.3	94.6 -0.9	usable	150 W vs 300 W: lower power handling	+
B&C 12 CLX 64	54 -3	0.575 -0.1	74 -0.1	5.3 +3.7	96.3 +0.8	usable		+
SICA 12 D 1.5 CS 8 Ohms	62 +5	0.748 +0.07	63.5 -10.6	2.7 +1.1	96.8 +1.3	usable	100 W vs 300 W: lower power handling	+

Compare the closest 3 against the GAMMA 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.