Magnat SUB 300 SUPREME

12" · 4 Ω · 300 W · 95.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	30 Hz
Qts	0.289
Qes	0.31
Qms	4.3
Vas	110 L
Sd	500 cm²
Xmax	7.6 mm
Re	3.4 Ω
Bl	13.6 T·m
Mms	89.7 g
Pe	300 W
Sensitivity	95.5 dB

Alignment hint

EBP	97 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 22.1 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
MAG Audio SUB 300	30.3 +0.3	0.323 +0.03	110.7 +0.7	7.4 -0.2	95.1 -0.4	close	Xmax 7.4 mm < 7.6 mm: lower excursion-limited SPL	+
Magnat 300	31 +1	0.3 +0.01	120 +10	7.1 -0.5	96.5 +1	close	Xmax 7.1 mm < 7.6 mm: lower excursion-limited SPL	+
Beyma POWER 12 COMPETITION	29 -1	0.27 -0.02	122 +12	9 +1.4	95.1 -0.4	close	8 Ω vs 4 Ω: amp load changes	+
SICA 12SR3PL	27.4 -2.6	0.27 -0.02	103.1 -6.9	7 -0.6	94.8 -0.7	close	Xmax 7 mm < 7.6 mm: lower excursion-limited SPL	+
Magnat SUPREME 3000	29 -1	0.31 +0.02	131 +21	8 +0.4	96.4 +0.9	close		+
PHL Audio 4021 v2017	30 =	0.281 -0.01	96 -14	7 -0.6	93 -2.5	close	8 Ω vs 4 Ω: amp load changes · Xmax 7 mm < 7.6 mm: lower excursion-limited SPL	+
Beyma 12LW30/N	38 +8	0.287 =	109 -1	7 -0.6	96.2 +0.7	close	8 Ω vs 4 Ω: amp load changes · Xmax 7 mm < 7.6 mm: lower excursion-limited SPL	+
Eminence KAPPALITE 3012 LF-4	36.4 +6.4	0.308 +0.02	107.4 -2.6	8.1 +0.5	97.2 +1.7	close		+
McCauley B1240	38 +8	0.286 =	110 =	6.5 -1.1	96.3 +0.8	close	8 Ω vs 4 Ω: amp load changes · Xmax 6.5 mm < 7.6 mm: lower excursion-limited SPL	+
Eminence KAPPALITE 3012 LF	37 +7	0.324 +0.04	106.7 -3.3	8.2 +0.6	95.5 =	close	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the SUB 300 SUPREME →

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.