Focal 33V2

12" · 4 Ω · 400 W · 92.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	28.7 Hz
Qts	0.537
Qes	0.61
Qms	4.51
Vas	76.2 L
Sd	530.9 cm²
Xmax	7.5 mm
Re	2.1 Ω
Bl	9.9 T·m
Mms	159.4 g
Pe	400 W
Sensitivity	92.5 dB

Alignment hint

EBP	47 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 103.8 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
MTX Audio RT12-04	28 -0.7	0.535 =	68 -8.2	7.5 =	90.1 -2.4	close	250 W vs 400 W: lower power handling	+
Oxygen SPIRAL 300	32 +3.3	0.56 +0.02	81 +4.8	7.6 +0.1	92 -0.5	close	250 W vs 400 W: lower power handling	+
Boston Acoustics G21244	28 -0.7	0.579 +0.04	65 -11.2	8.2 +0.7	92.4 -0.1	close	2 Ω vs 4 Ω: amp load changes · 300 W vs 400 W: lower power handling	+
JBL CS1214	28 -0.7	0.536 =	76.7 +0.5	6.1 -1.4	90.2 -2.3	close	250 W vs 400 W: lower power handling · Xmax 6.1 mm < 7.5 mm: lower excursion-limited SPL	+
Tymphany LAT 500-04	28 -0.7	0.474 -0.06	81 +4.8	7.7 +0.2	91.6 -0.9	close	250 W vs 400 W: lower power handling	+
JBL GTO 1214D	28.3 -0.4	0.488 -0.05	66 -10.2	7.3 -0.2	92.9 +0.4	close	2 Ω vs 4 Ω: amp load changes · Xmax 7.3 mm < 7.5 mm: lower excursion-limited SPL	+
Phoenix Gold RYVAL V12D	30 +1.3	0.552 +0.02	81.9 +5.7	6.4 -1.1	91.4 -1.1	close	150 W vs 400 W: lower power handling · Xmax 6.4 mm < 7.5 mm: lower excursion-limited SPL	+
JBL GT3-12	28.2 -0.5	0.541 =	100.5 +24.3	8.2 +0.7	91.8 -0.7	close	225 W vs 400 W: lower power handling	+
Morel PRIMO 12	28 -0.7	0.474 -0.06	85 +8.8	8 +0.5	91.5 -1	close		+
Rockford Fosgate S2-124	27 -1.7	0.498 -0.04	77 +0.8	10.7 +3.2	89.9 -2.6	close		+

Compare the closest 3 against the 33V2 →

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.