18 Sound 12TC300

12" · 8 Ω · 100 W · 101.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	78 Hz
Qts	0.428
Qes	0.45
Qms	8.8
Vas	56.5 L
Sd	531 cm²
Xmax	1.5 mm
Re	5.1 Ω
Bl	12.7 T·m
Mms	29.1 g
Pe	100 W
Sensitivity	101.7 dB

Alignment hint

EBP	173 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 32.7 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 CV 75A	79 +1	0.418 -0.01	52.5 -4	1.2 -0.3	100.4 -1.3	close	75 W vs 100 W: lower power handling · Xmax 1.2 mm < 1.5 mm: lower excursion-limited SPL	+
Warehouse Sound REAPER 12	77.4 -0.6	0.464 +0.04	65 +8.5	1.3 -0.2	100.6 -1.1	close	30 W vs 100 W: lower power handling · Xmax 1.3 mm < 1.5 mm: lower excursion-limited SPL	+
B&C 320KC-8A	82 +4	0.5 +0.07	53 -3.5	2 +0.5	101.2 -0.5	close		+
B&C 320K/C-A	82 +4	0.5 +0.07	53 -3.5	2 +0.5	101 -0.7	close		+
Fane F70	70 -8	0.402 -0.03	61.8 +5.3	1.5 =	99.3 -2.4	close	70 W vs 100 W: lower power handling	+
Celestion TF 1218TC v2010	74.1 -3.9	0.455 +0.03	48.1 -8.4	1.5 =	99.2 -2.5	close		+
Fane F90	70 -8	0.382 -0.05	61 +4.5	1.5 =	100.2 -1.5	close		+
Celestion BN12-300S4	61.2 -16.8	0.408 -0.02	56.9 +0.4	2.5 +1	101.2 -0.5	close	4 Ω vs 8 Ω: amp load changes	+
Beyma 12GU	70 -8	0.475 +0.05	60 +3.5	2 +0.5	98.3 -3.4	usable		+
RCF L 12/854K	67 -11	0.382 -0.05	58 +1.5	3 +1.5	100.1 -1.6	usable		+

Compare the closest 3 against the 12TC300 →

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.