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Ground Zero GZRW 15XSPL D2

15" · 4 Ω · 2400 W · 91.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size15"
Impedance4 Ω
Fs34.1 Hz
Qts0.59
Qes0.64
Qms7.56
Vas63.3 L
Sd831.7 cm²
Xmax11.3 mm
Re3.8 Ω
Bl20.6 T·m
Mms333.7 g
Pe2400 W
Sensitivity91.1 dB

Alignment hint

EBP53 · flexible
Sealed Vb (Qtc ≈ 0.71)≈ 145.1 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
MTX Audio T612S-2233.6 -0.50.602 +0.0158.9 -4.47.4 -3.991.2 +0.1close600 W vs 2400 W: lower power handling · Xmax 7.4 mm < 11.3 mm: lower excursion-limited SPL+
Lanzar OPTI1535D vp30 -4.10.587 =55.4 -7.910.4 -0.988.3 -2.8usable8 Ω vs 4 Ω: amp load changes · 1600 W vs 2400 W: lower power handling · Xmax 10.4 mm < 11.3 mm: lower excursion-limited SPL+
American Bass DX 1530.4 -3.70.56 -0.0389.6 +26.315 +3.790 -1.1usable500 W vs 2400 W: lower power handling+
B&C 15BG7644 +9.90.56 -0.0368.4 +5.19.6 -1.793.4 +2.3usable8 Ω vs 4 Ω: amp load changes · 500 W vs 2400 W: lower power handling · Xmax 9.6 mm < 11.3 mm: lower excursion-limited SPL+
Orion Audio HCCA 15430 -4.10.535 -0.0580 +16.712.7 +1.487.9 -3.2usable8 Ω vs 4 Ω: amp load changes+
MTX Audio T815-2232.3 -1.80.635 +0.0557 -6.36.1 -5.290 -1.1usable600 W vs 2400 W: lower power handling · Xmax 6.1 mm < 11.3 mm: lower excursion-limited SPL+
Rockford Fosgate T2D41531 -3.10.613 +0.0251.6 -11.79.3 -286.2 -4.9usable8 Ω vs 4 Ω: amp load changes · 1200 W vs 2400 W: lower power handling · Xmax 9.3 mm < 11.3 mm: lower excursion-limited SPL+
Rockville 81921602073933 -1.10.886 +0.370.6 +7.312.9 +1.692.1 +1usable+
Rockville W15K9D433 -1.10.886 +0.370.6 +7.312.9 +1.692.1 +1usable+
Rockford Fosgate T2D21531 -3.10.523 -0.0748.4 -14.98.7 -2.689.7 -1.4usable1200 W vs 2400 W: lower power handling · Xmax 8.7 mm < 11.3 mm: lower excursion-limited SPL+

Compare the closest 3 against the GZRW 15XSPL D2 →

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.