MAG Audio SUB 300

12" · 4 Ω · 300 W · 95.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	30.3 Hz
Qts	0.323
Qes	0.358
Qms	3.315
Vas	110.7 L
Sd	538.9 cm²
Xmax	7.4 mm
Re	3.38 Ω
Bl	13.5 T·m
Mms	101.6 g
Pe	300 W
Sensitivity	95.1 dB

Alignment hint

EBP	85 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 29.2 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
Magnat SUB 300 SUPREME	30 -0.3	0.289 -0.03	110 -0.7	7.6 +0.2	95.5 +0.4	close		+
Focal 13 VX	30 -0.3	0.323 =	117 +6.3	6.8 -0.6	92.5 -2.6	close	8 Ω vs 4 Ω: amp load changes · 225 W vs 300 W: lower power handling · Xmax 6.8 mm < 7.4 mm: lower excursion-limited SPL	+
Magnat 300	31 +0.7	0.3 -0.02	120 +9.3	7.1 -0.3	96.5 +1.4	close	Xmax 7.1 mm < 7.4 mm: lower excursion-limited SPL	+
Eminence KAPPALITE 3012 LF	37 +6.7	0.324 =	106.7 -4	8.2 +0.8	95.5 +0.4	close	8 Ω vs 4 Ω: amp load changes	+
Eminence KappaLITE 3012LF	37 +6.7	0.32 =	106.65 -4.05	9.1 +1.7	95.5 +0.4	close	8 Ω vs 4 Ω: amp load changes	+
Visaton TIW300 vp	28.9 -1.4	0.32 =	125 +14.3	8.3 +0.9	92.5 -2.6	close	8 Ω vs 4 Ω: amp load changes	+
Magnat SUPREME 3000	29 -1.3	0.31 -0.01	131 +20.3	8 +0.6	96.4 +1.3	close		+
SICA 12 SR 3 PL vp	28.7 -1.6	0.317 -0.01	101.2 -9.5	7 -0.4	92.4 -2.7	close	8 Ω vs 4 Ω: amp load changes · Xmax 7 mm < 7.4 mm: lower excursion-limited SPL	+
Dali A-12WD vp	27 -3.3	0.328 +0.01	121 +10.3	8.8 +1.4	93.3 -1.8	close	8 Ω vs 4 Ω: amp load changes	+
Eton 12-612/C8/62 RP	30 -0.3	0.32 =	134 +23.3	8.5 +1.1	92.1 -3	close	8 Ω vs 4 Ω: amp load changes · 150 W vs 300 W: lower power handling	+

Compare the closest 3 against the SUB 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.