Fane SOVEREIGN PRO 12-300

12" · 8 Ω · 300 W · 98.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	46 Hz
Qts	0.35
Qes	0.375
Qms	5.2
Vas	114 L
Sd	540 cm²
Xmax	4.5 mm
Re	5.75 Ω
Bl	13.8 T·m
Mms	42.9 g
Pe	300 W
Sensitivity	98.1 dB

Alignment hint

EBP	123 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 37 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
Fane SOVEREIGN 12-300 v2014	46 =	0.35 =	110 -4	4.5 =	98 -0.1	close		+
Fane SOVEREIGN PRO 12-350N	46 =	0.328 -0.02	114 =	4.5 =	98.4 +0.3	close		+
Monacor SP-12/200PA	45 -1	0.328 -0.02	114 =	4 -0.5	97.4 -0.7	close	200 W vs 300 W: lower power handling · Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
18 Sound 12W501	46 =	0.369 +0.02	123 +9	4 -0.5	98.7 +0.6	close	Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
18 Sound 12W500	46 =	0.36 +0.01	123 +9	4 -0.5	99.5 +1.4	close	Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
18 Sound 12W500	49 +3	0.35 =	101 -13	4 -0.5	98.5 +0.4	close	4 Ω vs 8 Ω: amp load changes · Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
Beyma 12XM	42 -4	0.348 =	125 +11	4 -0.5	97.9 -0.2	close	Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
Faital PRO 12PR320-08 v2022	42 -4	0.371 +0.02	113 -1	7.1 +2.6	97.1 -1	close		+
Faital PRO 12PR320	42 -4	0.37 +0.02	113.3 -0.7	7.37 +2.87	97 -1.1	close		+
Beyma 12LW30	45 -1	0.404 +0.05	110 -4	5 +0.5	97 -1.1	close		+

Compare the closest 3 against the SOVEREIGN PRO 12-300 →

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.