Sphynx SP-W12-GLB

12" · 8 Ω · 200 W · 86 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	32 Hz
Qts	0.782
Qes	0.93
Qms	4.93
Vas	65.9 L
Sd	520 cm²
Xmax	5.8 mm
Re	7.3 Ω
Bl	15 T·m
Mms	142.3 g
Pe	200 W
Sensitivity	86 dB

Alignment hint

EBP	34 · 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
Europsonic TS30/600PRO	32 =	0.782 =	65.9 =	4 -1.8	86 =	close	Xmax 4 mm < 5.8 mm: lower excursion-limited SPL	+
Europsonic TS30/600PRO-8	32 =	0.782 =	65.9 =	4 -1.8	86 =	close	Xmax 4 mm < 5.8 mm: lower excursion-limited SPL	+
Infinity Kappa 123WDSSI 2Ohm	34.2 +2.2	0.778 =	58.6153 -7.28	10.2 +4.4	86.0429 +0.04	close	2 Ω vs 8 Ω: amp load changes	+
Rockford Fosgate R2SD4-12	30.3 -1.7	0.653 -0.13	65.4 -0.5	6.9 +1.1	86.7 +0.7	close		+
JL Audio 12W0V3-4	32.09 +0.09	0.67 -0.11	71.64 +5.74	11.4 +5.6	85.64 -0.36	close	4 Ω vs 8 Ω: amp load changes	+
Alpine SWE-1242	31 -1	0.66 -0.12	61 -4.9	11.7 +5.9	85.9 -0.1	close	4 Ω vs 8 Ω: amp load changes	+
Davis 31ST12	31 -1	0.813 +0.03	58 -7.9	4.1 -1.7	85.2 -0.8	usable	100 W vs 200 W: lower power handling · Xmax 4.1 mm < 5.8 mm: lower excursion-limited SPL	+
Cerwin-Vega VEGA 124	30.3 -1.7	0.612 -0.17	60.3 -5.6	7 +1.2	86.4 +0.4	usable		+
Ground Zero GZIW 300X	34.9 +2.9	0.69 -0.09	53.6 -12.3	7.5 +1.7	86.6 +0.6	usable	4 Ω vs 8 Ω: amp load changes	+
MTX Audio RTL12-44 DVC	30.4 -1.6	0.761 -0.02	74 +8.1	7.1 +1.3	91.7 +5.7	usable	4 Ω vs 8 Ω: amp load changes	+

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

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.