Raveland BSW 124-II

12" · 4 Ω · 200 W · 94.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	28 Hz
Qts	0.252
Qes	0.27
Qms	3.74
Vas	91.4 L
Sd	499 cm²
Xmax	5.4 mm
Re	3.2 Ω
Bl	16 T·m
Mms	123.4 g
Pe	200 W
Sensitivity	94.7 dB

Alignment hint

EBP	104 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 13.3 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
SICA 12SR3PL	27.4 -0.6	0.27 +0.02	103.1 +11.7	7 +1.6	94.8 +0.1	close		+
BMS 12S330	28.6 +0.6	0.24 -0.01	85.5 -5.9	8 +2.6	96 +1.3	close	8 Ω vs 4 Ω: amp load changes	+
SICA 12 S 2.5 CS	33 +5	0.265 +0.01	93.7 +2.3	6 +0.6	94 -0.7	close	8 Ω vs 4 Ω: amp load changes	+
BMS 12S330 v2016	28.6 +0.6	0.24 -0.01	85.5 -5.9	8 +2.6	92.3 -2.4	close	8 Ω vs 4 Ω: amp load changes	+
PHL Audio 4021 v2017	30 +2	0.281 +0.03	96 +4.6	7 +1.6	93 -1.7	close	8 Ω vs 4 Ω: amp load changes	+
Mivoc AW 3000	27 -1	0.305 +0.05	97 +5.6	5.9 +0.5	93.9 -0.8	close		+
Mivoc AWM 124	30 +2	0.251 =	68 -23.4	4.7 -0.7	94.6 -0.1	close	Xmax 4.7 mm < 5.4 mm: lower excursion-limited SPL	+
PHL Audio 4020	29 +1	0.299 +0.05	92 +0.6	7 +1.6	92.1 -2.6	close	8 Ω vs 4 Ω: amp load changes	+
Beyma POWER 12 COMPETITION	29 +1	0.27 +0.02	122 +30.6	9 +3.6	95.1 +0.4	usable	8 Ω vs 4 Ω: amp load changes	+
JBL 1200FE-8	27 -1	0.256 =	125 +33.6	10 +4.6	93.3 -1.4	usable	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the BSW 124-II →

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.