Visaton WS32AW vp de FREDO51

12" · 8 Ω · 150 W · 91.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	39 Hz
Qts	0.765
Qes	0.9
Qms	5.1
Vas	115 L
Sd	510 cm²
Xmax	5 mm
Re	6.85 Ω
Bl	9.9 T·m
Mms	52.8 g
Pe	150 W
Sensitivity	91.5 dB

Alignment hint

EBP	43 · sealed
Sealed Vb (Qtc ≈ 0.71)	Qts too high

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
Infinity 1200WIB vp	35 -4	0.789 +0.02	116 +1	5.1 +0.1	92.8 +1.3	close	4 Ω vs 8 Ω: amp load changes	+
Fane SOVEREIGN 12-125	47 +8	0.796 +0.03	113.2 -1.8	4.9 -0.1	93.8 +2.3	close	Xmax 4.9 mm < 5 mm: lower excursion-limited SPL	+
JL Audio 12IB4	40.5 +1.5	0.631 -0.13	112.4 -2.6	6 +1	93.6 +2.1	close		+
AE Speakers LO12-D16	41.9 +2.9	0.67 -0.09	119.7 +4.7	7.4 +2.4	94.1 +2.6	usable		+
Focal 33F	36.5 -2.5	0.712 -0.05	95.5 -19.5	6 +1	94.1 +2.6	usable	4 Ω vs 8 Ω: amp load changes	+
Focal 13V 7501	36.5 -2.5	0.712 -0.05	97.3 -17.7	6.8 +1.8	94.2 +2.7	usable	4 Ω vs 8 Ω: amp load changes	+
Cabasse 30BZ18 v2	38.5 -0.5	0.747 -0.02	154.7 +39.7	4 -1	92.8 +1.3	usable	80 W vs 150 W: lower power handling · Xmax 4 mm < 5 mm: lower excursion-limited SPL	+
Lanzar VW124/12D	40 +1	0.763 =	147.4 +32.4	10 +5	95.5 +4	usable	4 Ω vs 8 Ω: amp load changes	+
Monacor SP-302E	39 =	0.722 -0.04	141 +26	4 -1	95.3 +3.8	usable	4 Ω vs 8 Ω: amp load changes · 100 W vs 150 W: lower power handling · Xmax 4 mm < 5 mm: lower excursion-limited SPL	+
AE Speakers LO12-D8 v2016	41.9 +2.9	0.67 -0.09	117.9 +2.9	7.4 +2.4	97.1 +5.6	usable	4 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the WS32AW vp de FREDO51 →

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.