Celestion TF 1220

12" · 8 Ω · 150 W · 98.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	55 Hz
Qts	0.416
Qes	0.46
Qms	4.3
Vas	84.7 L
Sd	530 cm²
Xmax	2 mm
Re	5.54 Ω
Bl	12.7 T·m
Mms	38.9 g
Pe	150 W
Sensitivity	98.4 dB

Alignment hint

EBP	120 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 44.8 L

EBP > 100: favours a ported (bass-reflex) 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 DELTA-12A	55 =	0.43 +0.01	81.3 -3.4	2.4 +0.4	98.3 -0.1	close		+
Eminence DELTA 12 B	55 =	0.423 +0.01	83.1 -1.6	2.7 +0.7	97.8 -0.6	close		+
Eminence DELTA 12	55 =	0.423 +0.01	81.3 -3.4	2.4 +0.4	97.7 -0.7	close		+
Samy Speaker CX-12AW200G	55 =	0.438 +0.02	95.6 +10.9	2.5 +0.5	98.9 +0.5	close	100 W vs 150 W: lower power handling	+
SICA 12 N 2.5 PL	55.3 +0.3	0.395 -0.02	79.7 -5	3.5 +1.5	98.8 +0.4	close		+
Celestion TF 1218TC	56 +1	0.408 -0.01	80.2 -4.5	1.5 -0.5	98.4 =	close	100 W vs 150 W: lower power handling · Xmax 1.5 mm < 2 mm: lower excursion-limited SPL	+
Celestion TF 1218TC v2008	56 +1	0.408 -0.01	80.2 -4.5	1.5 -0.5	98.4 =	close	100 W vs 150 W: lower power handling · Xmax 1.5 mm < 2 mm: lower excursion-limited SPL	+
Eminence DELTA 12B	58 +3	0.48 +0.06	87 +2.3	2.7 +0.7	98.3 -0.1	close	16 Ω vs 8 Ω: amp load changes	+
Audax PR330T0	55 =	0.435 +0.02	73.7 -11	3.7 +1.7	97.3 -1.1	close		+
LaVoce WSF122.02	50 -5	0.404 -0.01	88 +3.3	4.3 +2.3	97.7 -0.7	close		+

Compare the closest 3 against the TF 1220 →

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.