Ground Zero GZPW 15SPL

15" · 4 Ω · 1000 W · 96.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	39.1 Hz
Qts	0.247
Qes	0.26
Qms	4.83
Vas	36.8 L
Sd	855 cm²
Xmax	3.8 mm
Re	2.3 Ω
Bl	31.7 T·m
Mms	461.4 g
Pe	1000 W
Sensitivity	96.7 dB

Alignment hint

EBP	150 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 5.1 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
B&C 15DS100	39 -0.1	0.23 -0.02	73 +36.2	13 +9.2	96.8 +0.1	usable		+
B&C 15DS100	39 -0.1	0.26 +0.01	76 +39.2	14.5 +10.7	96.8 +0.1	usable	8 Ω vs 4 Ω: amp load changes	+
Ascendant Audio 15 DUAL 2 Ohms	30.1 -9	0.274 +0.03	55.1 +18.3	9.4 +5.6	96.9 +0.2	usable	2 Ω vs 4 Ω: amp load changes	+
Peavey 1505 DT vp 1993 sans couleur	37.9 -1.2	0.284 +0.04	69.1 +32.3	3.4 -0.4	94.7 -2	usable	8 Ω vs 4 Ω: amp load changes · 350 W vs 1000 W: lower power handling · Xmax 3.4 mm < 3.8 mm: lower excursion-limited SPL	+
Peavey 1505 DT vp 1992 trait rouge	37.9 -1.2	0.284 +0.04	69.1 +32.3	3.3 -0.5	94.7 -2	usable	8 Ω vs 4 Ω: amp load changes · 350 W vs 1000 W: lower power handling · Xmax 3.3 mm < 3.8 mm: lower excursion-limited SPL	+
Ascendant Audio 15 DUAL 1 Ohms	29.9 -9.2	0.274 +0.03	55.1 +18.3	9.4 +5.6	99.6 +2.9	usable	1 Ω vs 4 Ω: amp load changes	+
Massive Audio HIPPO XL 152	43.1 +4	0.363 +0.12	26 -10.8	5.7 +1.9	98.8 +2.1	usable	1 Ω vs 4 Ω: amp load changes	+
Ground Zero GZNW 15XMAX	29.5 -9.6	0.329 +0.08	35.7 -1.1	10.5 +6.7	92.2 -4.5	usable		+
B&C 15 TBW 100-4	39 -0.1	0.285 +0.04	88 +51.2	7.8 +4	98.4 +1.7	usable		+
B&C 15TBW100	39 -0.1	0.28 +0.03	88 +51.2	12 +8.2	95 -1.7	usable		+

Compare the closest 3 against the GZPW 15SPL →

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.