Sphynx SP-W12-BP

12" · 8 Ω · 100 W · 91.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	30.4 Hz
Qts	0.864
Qes	1.136
Qms	3.617
Vas	336.9 L
Sd	572.6 cm²
Xmax	4 mm
Re	7.8 Ω
Bl	7 T·m
Mms	37.4 g
Pe	100 W
Sensitivity	91.3 dB

Alignment hint

EBP	27 · 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
Sphynx SP-W12 IND	30.4 =	0.868 =	336.9 =	4 =	91.3 =	close		+
Sphynx SP-W12-BP ferrite	34.3 +3.9	1.063 +0.2	337 +0.1	6 +2	91.7 +0.4	usable		+
Sphynx SP-W12-BP v2015	34.3 +3.9	1.063 +0.2	337 +0.1	6 +2	91.7 +0.4	usable		+
Kenwood RD 30 FU 120-F	31.6 +1.2	0.879 +0.02	206.3 -130.6	8 +4	89.8 -1.5	usable		+
Philips AD12672/W8	29 -1.4	0.662 -0.2	245 -91.9	6 +2	92.3 +1	usable		+
Jamo 20325	32 +1.6	0.849 -0.02	163.4 -173.5	5 +1	93 +1.7	usable	4 Ω vs 8 Ω: amp load changes	+
Sphynx SP-W12-PRO-2	33 +2.6	0.574 -0.29	284 -52.9	4.3 +0.3	94.5 +3.2	usable		+
AE Speakers DIPOLE 12-D4	25.9 -4.5	0.685 -0.18	273 -63.9	10 +6	94.2 +2.9	usable	4 Ω vs 8 Ω: amp load changes	+
Tonsil GDN 30/60/1	25 -5.4	0.579 -0.29	327 -9.9	3.1 -0.9	90.2 -1.1	usable	60 W vs 100 W: lower power handling · Xmax 3.1 mm < 4 mm: lower excursion-limited SPL	+
Kenford HW-1206	31 +0.6	0.8 -0.06	170 -166.9	3 -1	89.5 -1.8	usable	Xmax 3 mm < 4 mm: lower excursion-limited SPL	+

Compare the closest 3 against the SP-W12-BP →

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.