Sphynx WRB15

15" · 16 Ω · 150 W · 99.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	16 Ω
Fs	38 Hz
Qts	0.331
Qes	0.387
Qms	2.31
Vas	376 L
Sd	851 cm²
Xmax	4 mm
Re	8.1 Ω
Bl	15.4 T·m
Mms	47.4 g
Pe	150 W
Sensitivity	99.2 dB

Alignment hint

EBP	98 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 105.5 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
Sphynx SP-W15-SONO	38 =	0.331 =	376 =	4 =	100.9 +1.7	close	8 Ω vs 16 Ω: amp load changes	+
Altec 515-8C vp jpvoit	34.2 -3.8	0.337 +0.01	414.9 +38.9	4.1 +0.1	98.6 -0.6	close	8 Ω vs 16 Ω: amp load changes · 75 W vs 150 W: lower power handling	+
Sonido SCW-400	34 -4	0.339 +0.01	357 -19	5 +1	98.6 -0.6	close	8 Ω vs 16 Ω: amp load changes	+
Eminence LEGEND CB15	34 -4	0.339 +0.01	336 -40	4.8 +0.8	98.8 -0.4	close	8 Ω vs 16 Ω: amp load changes	+
ATC SB100-375SC	30 -8	0.322 -0.01	380 +4	4.2 +0.2	98 -1.2	close	8 Ω vs 16 Ω: amp load changes · 100 W vs 150 W: lower power handling	+
AE Speakers TD15M	34.7 -3.3	0.327 =	312 -64	6 +2	98.5 -0.7	close	8 Ω vs 16 Ω: amp load changes	+
AE Speakers TD15M 8 Ohms	34.7 -3.3	0.327 =	312 -64	6 +2	98.5 -0.7	close	8 Ω vs 16 Ω: amp load changes	+
Beyma SM115 vp4	35.5 -2.5	0.339 +0.01	310.6 -65.4	7.3 +3.3	99 -0.2	close	8 Ω vs 16 Ω: amp load changes	+
Eminence KAPPA 15 A	33 -5	0.318 -0.01	321.3 -54.7	5.5 +1.5	99.3 +0.1	close	8 Ω vs 16 Ω: amp load changes	+
Eminence KAPPA-15A	33 -5	0.32 -0.01	321.3 -54.7	4 =	100.5 +1.3	close	8 Ω vs 16 Ω: amp load changes	+

Compare the closest 3 against the WRB15 →

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.