Alpine SWG-1244

12" · 4 Ω · 250 W · 87.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	28 Hz
Qts	0.38
Qes	0.43
Qms	3.27
Vas	75 L
Sd	502 cm²
Xmax	10 mm
Re	3.6 Ω
Bl	15.06 T·m
Mms	153.9 g
Pe	250 W
Sensitivity	87.7 dB

Alignment hint

EBP	65 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 30.5 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
Powerbass M-124	29.15 +1.15	0.41 +0.03	77.3 +2.3	9.5 -0.5	88 +0.3	close	Xmax 9.5 mm < 10 mm: lower excursion-limited SPL	+
Gladen ZERO 12 PRO	27 -1	0.38 =	93.72 +18.72	12.5 +2.5	88.5 +0.8	close		+
Morel ULTIMO 124	26 -2	0.421 +0.04	73.8 -1.2	14.6 +4.6	89 +1.3	close		+
Oxygen AIR2 300 v2015	22.7 -5.3	0.388 +0.01	78 +3	9.9 -0.1	89.1 +1.4	close	Xmax 9.9 mm < 10 mm: lower excursion-limited SPL	+
Audio System R12	27.7 -0.3	0.35 -0.03	84.3 +9.3	8.5 -1.5	88.6 +0.9	close	Xmax 8.5 mm < 10 mm: lower excursion-limited SPL	+
Aura Sound NS12-794-4A	27 -1	0.423 +0.04	78 +3	9.9 -0.1	90.9 +3.2	close	Xmax 9.9 mm < 10 mm: lower excursion-limited SPL	+
Ground Zero GZUW 300SQ	25.3 -2.7	0.423 +0.04	86.6 +11.6	12.9 +2.9	88 +0.3	close	8 Ω vs 4 Ω: amp load changes	+
Infinity REFERENCE 1260W	23.5 -4.5	0.39 +0.01	83 +8	13 +3	86 -1.7	close		+
Infinity PRIMUS 1270	29.7 +1.7	0.49 +0.11	75.7 +0.7	11.3 +1.3	87.3 -0.4	close		+
Dayton Audio RSS315HF-4 v2016	24.2 -3.8	0.388 +0.01	84.1 +9.1	9.3 -0.7	90.3 +2.6	usable	Xmax 9.3 mm < 10 mm: lower excursion-limited SPL	+

Compare the closest 3 against the SWG-1244 →

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.