Celestion G12T-100

12" · 8 Ω · 100 W · 96.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	81 Hz
Qts	0.833
Qes	0.887
Qms	13.57
Vas	47 L
Sd	517 cm²
Xmax	2 mm
Re	7.49 Ω
Bl	11.5 T·m
Mms	30.8 g
Pe	100 W
Sensitivity	96.8 dB

Alignment hint

EBP	91 · 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
Celestion G12T 75	85 +4	0.836 =	51 +4	2 =	95.3 -1.5	close	16 Ω vs 8 Ω: amp load changes · 75 W vs 100 W: lower power handling	+
Celestion F12-X200	75 -6	0.777 -0.06	47.3 +0.3	3 +1	97.1 +0.3	close		+
JBL 2142H	72 -9	0.755 -0.08	45.3 -1.7	2.2 +0.2	96.5 -0.3	close		+
Celestion F12M-150 Triple Cone	69.4 -11.6	0.906 +0.07	46.9 -0.1	2.3 +0.3	95.2 -1.6	close		+
Jensen JCH 1270-8	78 -3	1.084 +0.25	46.7 -0.3	1.5 -0.5	96.6 -0.2	usable	70 W vs 100 W: lower power handling · Xmax 1.5 mm < 2 mm: lower excursion-limited SPL	+
Siemens KL405	75.8 -5.2	0.77 -0.06	68 +21	3 +1	99.2 +2.4	usable		+
B&C 320K/C-A	82 +1	0.59 -0.24	52 +5	2 =	100 +3.2	usable	16 Ω vs 8 Ω: amp load changes	+
Celestion TF 1215	62 -19	0.857 +0.02	69 +22	2.5 +0.5	96.2 -0.6	usable		+
SICA 12 D 1.5 CS 8 Ohms	62 -19	0.748 -0.08	63.5 +16.5	2.7 +0.7	96.8 =	usable		+
Sica 12 D 1.5 CS	62 -19	0.75 -0.08	63.5 +16.5	2.7 +0.7	96.9 +0.1	usable		+

Compare the closest 3 against the G12T-100 →

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.