Alpine SWE-1244E

12" · 4 Ω · 200 W · 88.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	31 Hz
Qts	0.53
Qes	0.631
Qms	3.3
Vas	102.5 L
Sd	519 cm²
Xmax	7.5 mm
Re	3.3 Ω
Bl	10 T·m
Mms	98.4 g
Pe	200 W
Sensitivity	88.7 dB

Alignment hint

EBP	49 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 131.4 L

EBP < 50: favours a sealed (closed) 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
American Bass SL 124	31.5 +0.5	0.543 +0.01	85.7 -16.8	8.5 +1	88.3 -0.4	close		+
Hertz Audio DS 30.3	29 -2	0.51 -0.02	94 -8.5	9 +1.5	87.7 -1	close		+
JBL GT3-12	28.2 -2.8	0.541 +0.01	100.5 -2	8.2 +0.7	91.8 +3.1	close		+
Peerless XXLS-P830845	27 -4	0.517 -0.01	119.5 +17	7.6 +0.1	89.8 +1.1	close	8 Ω vs 4 Ω: amp load changes	+
JL Audio 12WX-4	27 -4	0.562 +0.03	94.5 -8	8.5 +1	90.5 +1.8	close		+
Kicker ES124	30.4 -0.6	0.549 +0.02	97.7 -4.8	6.2 -1.3	92.2 +3.5	close	125 W vs 200 W: lower power handling · Xmax 6.2 mm < 7.5 mm: lower excursion-limited SPL	+
Rockford Fosgate P1S412	25 -6	0.537 +0.01	109 +6.5	9 +1.5	90.4 +1.7	close		+
Pyle Audio PLPW12D	32.9 +1.9	0.534 =	84.1 -18.4	6 -1.5	89.4 +0.7	close	8 Ω vs 4 Ω: amp load changes · Xmax 6 mm < 7.5 mm: lower excursion-limited SPL	+
Rockford Fosgate P112S4	25 -6	0.52 -0.01	110 +7.5	7.3 -0.2	90.6 +1.9	close	150 W vs 200 W: lower power handling · Xmax 7.3 mm < 7.5 mm: lower excursion-limited SPL	+
Peerless XXLS-P830845 v2025	29 -2	0.654 +0.12	91.9 -10.6	7.6 +0.1	88.5 -0.2	usable	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the SWE-1244E →

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.