Audax PR38S100VST vp M

15" · 8 Ω · 200 W · 96.8 dB

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	30.3 Hz
Qts	0.285
Qes	0.299
Qms	5.89
Vas	234 L
Sd	880 cm²
Xmax	4 mm
Re	5.79 Ω
Bl	21.7 T·m
Mms	128 g
Pe	200 W
Sensitivity	96.8 dB

Alignment hint

EBP	101 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 45.4 L

EBP > 100: favours a ported (bass-reflex) 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
Fostex L 469	30 -0.3	0.271 -0.01	259 +25	4 =	96.7 -0.1	close	150 W vs 200 W: lower power handling	+
JBL K145	35 +4.7	0.286 =	243.5 +9.5	4.7 +0.7	97 +0.2	close	16 Ω vs 8 Ω: amp load changes · 150 W vs 200 W: lower power handling	+
Fostex 15W-300	31 +0.7	0.26 -0.02	262 +28	4 =	97.3 +0.5	close		+
Eminence MAGNUM 15 HO	33 +2.7	0.27 -0.01	241 +7	4.8 +0.8	97.9 +1.1	close		+
Gauss 4583A v2	31 +0.7	0.292 +0.01	283 +49	4 =	97.9 +1.1	close	150 W vs 200 W: lower power handling	+
Tannoy 3808	32 +1.7	0.265 -0.02	200 -34	3.9 -0.1	97.1 +0.3	close	120 W vs 200 W: lower power handling · Xmax 3.9 mm < 4 mm: lower excursion-limited SPL	+
Audax PR38S100VST vp	33.8 +3.5	0.286 =	186 -48	4 =	96.8 =	close		+
Beyma 15 XT	33 +2.7	0.289 =	270 +36	5 +1	98 +1.2	close		+
JBL 1500 AL	27.3 -3	0.274 -0.01	264.6 +30.6	5.5 +1.5	96.5 -0.3	close		+
RCF L 15P200 v1983	29 -1.3	0.291 +0.01	280 +46	7.4 +3.4	96.6 -0.2	close		+

Compare the closest 3 against the PR38S100VST vp M →

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.