Ground Zero GZRW 12XS-AL

12" · 4 Ω · 600 W · 90.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	30 Hz
Qts	0.395
Qes	0.43
Qms	4.8
Vas	52 L
Sd	489.9 cm²
Xmax	8.9 mm
Re	3.8 Ω
Bl	17.4 T·m
Mms	182.1 g
Pe	600 W
Sensitivity	90.4 dB

Alignment hint

EBP	70 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 23.6 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
Ground Zero GZRW 30SPL vp	33.3 +3.3	0.357 -0.04	52 =	9.1 +0.2	92 +1.6	close	8 Ω vs 4 Ω: amp load changes	+
MTX Audio TX612	27 -3	0.393 =	42.7 -9.3	9.7 +0.8	91 +0.6	close		+
B&C 12 FG 100	34 +4	0.362 -0.03	49 -3	9.5 +0.6	91 +0.6	close	8 Ω vs 4 Ω: amp load changes	+
Pioneer TS-W126C(PREMIER)	32.6 +2.6	0.42 +0.02	55.614 +3.61	8.7 -0.2	88.4 -2	close	400 W vs 600 W: lower power handling · Xmax 8.7 mm < 8.9 mm: lower excursion-limited SPL	+
Resonant Engineering XXX 12D1 vp	27 -3	0.401 +0.01	56.5 +4.5	12.9 +4	92 +1.6	close		+
B&C 12FG100	34 +4	0.36 -0.04	49 -3	10.3 +1.4	91 +0.6	close	8 Ω vs 4 Ω: amp load changes	+
Audiobahn AW120T	32.4 +2.4	0.39 -0.01	45 -7	9 +0.1	87.5 -2.9	close		+
Hifonics ZX1284	33 +3	0.38 -0.02	63 +11	9 +0.1	89.2 -1.2	close		+
Pioneer TS-W306C	32.6 +2.6	0.414 +0.02	55.6 +3.6	8.1 -0.8	92.8 +2.4	close	400 W vs 600 W: lower power handling · Xmax 8.1 mm < 8.9 mm: lower excursion-limited SPL	+
Fountek FW323 - 4 Ohms	30 =	0.452 +0.06	51.4 -0.6	6.6 -2.3	89.7 -0.7	close	350 W vs 600 W: lower power handling · Xmax 6.6 mm < 8.9 mm: lower excursion-limited SPL	+

Compare the closest 3 against the GZRW 12XS-AL →

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.