GRS 15PT-8

15" · 8 Ω · 350 W · 93.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	28 Hz
Qts	0.415
Qes	0.43
Qms	11.7
Vas	242 L
Sd	829.6 cm²
Xmax	7.8 mm
Re	7.4 Ω
Bl	19.7 T·m
Mms	128.8 g
Pe	350 W
Sensitivity	93.2 dB

Alignment hint

EBP	65 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 127.2 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
Rockville RVW1500P8	28.3 +0.3	0.503 +0.09	254 +12	7.5 -0.3	92.7 -0.5	close	Xmax 7.5 mm < 7.8 mm: lower excursion-limited SPL	+
JBL 2226H vp two	28.2 +0.2	0.356 -0.06	245.4 +3.4	7 -0.8	94.9 +1.7	close	Xmax 7 mm < 7.8 mm: lower excursion-limited SPL	+
JBL 2226H vp one	28.1 +0.1	0.356 -0.06	247.5 +5.5	7 -0.8	94.9 +1.7	close	Xmax 7 mm < 7.8 mm: lower excursion-limited SPL	+
JBL GT3-15	28.2 +0.2	0.439 +0.02	266.2 +24.2	9 +1.2	97.1 +3.9	close	4 Ω vs 8 Ω: amp load changes	+
Pyle Audio PLPW15D	29 +1	0.459 +0.04	195.7 -46.3	8 +0.2	92.3 -0.9	close		+
SB Audience BIANCO-15OB350 v2022	32 +4	0.493 +0.08	239.4 -2.6	9.2 +1.4	94.2 +1	usable		+
Oxygen AIR 15.1	25 -3	0.465 +0.05	262.1 +20.1	11.1 +3.3	94.5 +1.3	usable	4 Ω vs 8 Ω: amp load changes	+
Dayton Audio DCS380-4 v2017	21.5 -6.5	0.434 +0.02	267 +25	8.4 +0.6	93.7 +0.5	usable	4 Ω vs 8 Ω: amp load changes · 250 W vs 350 W: lower power handling	+
Oxygen ALIUM 380 vp	22.2 -5.8	0.393 -0.02	223.9 -18.1	6.8 -1	93 -0.2	usable	4 Ω vs 8 Ω: amp load changes · 200 W vs 350 W: lower power handling · Xmax 6.8 mm < 7.8 mm: lower excursion-limited SPL	+
Dayton Audio DVC385-88	20.9 -7.1	0.446 +0.03	237 -5	11.1 +3.3	93.8 +0.6	usable	4 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the 15PT-8 →

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.