Cabasse 30BZ18 v1

12" · 8 Ω · 80 W · 94.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	36 Hz
Qts	0.616
Qes	0.67
Qms	7.69
Vas	243 L
Sd	506 cm²
Xmax	4 mm
Re	7.08 Ω
Bl	8.3 T·m
Mms	28.9 g
Pe	80 W
Sensitivity	94.8 dB

Alignment hint

EBP	54 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 764.9 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
Philips AD1256 vp A	36.9 +0.9	0.59 -0.03	244.9 +1.9	4.3 +0.3	94.7 -0.1	close	40 W vs 80 W: lower power handling	+
Philips AD5200 vp A	36.9 +0.9	0.59 -0.03	244.9 +1.9	4.3 +0.3	94.7 -0.1	close	40 W vs 80 W: lower power handling	+
Audio Nirvana SUPER 12AL	37 +1	0.635 +0.02	236 -7	3 -1	94.6 -0.2	close	60 W vs 80 W: lower power handling · Xmax 3 mm < 4 mm: lower excursion-limited SPL	+
Audio Nirvana 12AL	37 +1	0.65 +0.03	236 -7	3 -1	94.5 -0.3	close	30 W vs 80 W: lower power handling · Xmax 3 mm < 4 mm: lower excursion-limited SPL	+
Cabasse 30BZ24 vp oriu2	37 +1	0.543 -0.07	223 -20	4 =	93.6 -1.2	close	16 Ω vs 8 Ω: amp load changes	+
Altec 412 vp1	33.7 -2.3	0.625 +0.01	230.5 -12.5	3 -1	95 +0.2	close	20 W vs 80 W: lower power handling · Xmax 3 mm < 4 mm: lower excursion-limited SPL	+
Sphynx SP-W12-PRO-2	33 -3	0.574 -0.04	284 +41	4.3 +0.3	94.5 -0.3	close		+
Alpine 6002CX vp	33.5 -2.5	0.548 -0.07	246.4 +3.4	4.1 +0.1	97 +2.2	close		+
Audax PR300T4 série vp	37 +1	0.519 -0.1	220 -23	4 =	95.6 +0.8	close		+
PHY-HP HB30LB15	36 =	0.567 -0.05	224 -19	3 -1	91.9 -2.9	usable	16 Ω vs 8 Ω: amp load changes · 50 W vs 80 W: lower power handling · Xmax 3 mm < 4 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 30BZ18 v1 →

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.