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Ground Zero GZRW 30SPL vp

12" · 8 Ω · 750 W · 92 dB · datasheet ↗

Thiele-Small parameters

Nominal size12"
Impedance8 Ω
Fs33.3 Hz
Qts0.357
Qes0.38
Qms5.97
Vas52 L
Sd486.5 cm²
Xmax9.1 mm
Re4 Ω
Bl17.9 T·m
Mms145.7 g
Pe750 W
Sensitivity92 dB

Alignment hint

EBP88 · flexible
Sealed Vb (Qtc ≈ 0.71)≈ 17.8 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
B&C 12 FG 10034 +0.70.362 +0.0149 -39.5 +0.491 -1close+
B&C 12FG10034 +0.70.36 =49 -310.3 +1.291 -1close+
B&C 12FG10034 +0.70.32 -0.0453 +110.3 +1.291 -1close4 Ω vs 8 Ω: amp load changes+
B&C 12 FG 100 4 Ohms34 +0.70.32 -0.0453 +19.2 +0.194.3 +2.3close4 Ω vs 8 Ω: amp load changes+
Pioneer TS-W305C32.7 -0.60.34 -0.0251.5 -0.57.1 -293.4 +1.4close4 Ω vs 8 Ω: amp load changes · 400 W vs 750 W: lower power handling · Xmax 7.1 mm < 9.1 mm: lower excursion-limited SPL+
Ground Zero GZRW 12XS-AL30 -3.30.395 +0.0452 =8.9 -0.290.4 -1.6close4 Ω vs 8 Ω: amp load changes · Xmax 8.9 mm < 9.1 mm: lower excursion-limited SPL+
Pioneer TS-W306C32.6 -0.70.414 +0.0655.6 +3.68.1 -192.8 +0.8close4 Ω vs 8 Ω: amp load changes · 400 W vs 750 W: lower power handling · Xmax 8.1 mm < 9.1 mm: lower excursion-limited SPL+
PHL Audio 402135.4 +2.10.367 +0.0155.2 +3.26.5 -2.691.6 -0.4close450 W vs 750 W: lower power handling · Xmax 6.5 mm < 9.1 mm: lower excursion-limited SPL+
Gladen SQL 12 EXTREME33 -0.30.353 =36 -169.4 +0.393.1 +1.1close2 Ω vs 8 Ω: amp load changes+
Hifonics ZX128433 -0.30.38 +0.0263 +119 -0.189.2 -2.8close4 Ω vs 8 Ω: amp load changes · Xmax 9 mm < 9.1 mm: lower excursion-limited SPL+

Compare the closest 3 against the GZRW 30SPL vp →

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.