Radian 2212 B-8

12" · 8 Ω · 250 W · 95.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	51.2 Hz
Qts	0.568
Qes	0.59
Qms	15.6
Vas	80.4 L
Sd	559 cm²
Xmax	0.9 mm
Re	6.4 Ω
Bl	13.6 T·m
Mms	52.7 g
Pe	250 W
Sensitivity	95.6 dB

Alignment hint

EBP	87 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 146.2 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
Selenium 12PW3-4	52 +0.8	0.592 +0.02	86 +5.6	1.3 +0.4	97.8 +2.2	close		+
University Sound 312 200	50.5 -0.7	0.503 -0.06	85 +4.6	2 +1.1	94.4 -1.2	close	35 W vs 250 W: lower power handling	+
P.Audio HP-12W	48 -3.2	0.575 +0.01	99.8 +19.4	2 +1.1	95.9 +0.3	close	100 W vs 250 W: lower power handling	+
Supravox T285HF64	55 +3.8	0.6 +0.03	74.6 -5.8	3.3 +2.4	95.6 =	close	70 W vs 250 W: lower power handling	+
B&C 12 CLX 64	54 +2.8	0.575 +0.01	74 -6.4	5.3 +4.4	96.3 +0.7	usable		+
Beyma 12CMV3	52 +0.8	0.55 -0.02	85 +4.6	7 +6.1	96.5 +0.9	usable		+
Peavey PRO 12	48.4 -2.8	0.51 -0.06	86.4 +6	2.5 +1.6	94.1 -1.5	usable		+
Eminence GAMMA 12	57 +5.8	0.676 +0.11	74.1 -6.3	1.6 +0.7	95.5 -0.1	usable		+
Eminence GAMMA 12 A	57 +5.8	0.676 +0.11	74.1 -6.3	1.6 +0.7	95.5 -0.1	usable		+
Monacor SP-12/100PA v2	52.5 +1.3	0.481 -0.09	81.6 +1.2	3.4 +2.5	96.4 +0.8	usable	100 W vs 250 W: lower power handling	+

Compare the closest 3 against the 2212 B-8 →

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.