Gladen ZERO 12 PRO

12" · 4 Ω · 500 W · 88.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	27 Hz
Qts	0.38
Qes	0.4
Qms	6.32
Vas	93.72 L
Sd	510 cm²
Xmax	12.5 mm
Re	3.7 Ω
Bl	13.95 T·m
Mms	135 g
Pe	500 W
Sensitivity	88.5 dB

Alignment hint

EBP	68 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 38.1 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

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
Rockford Fosgate RFR2212	24 -3	0.376 =	93 -0.72	13 +0.5	90.5 +2	close		+
TC Sounds EPIC 12 DVC v2012	24 -3	0.394 +0.01	91.1 -2.62	12.5 =	90.2 +1.7	close		+
TC Sounds EPIC 12 DVC v2014	24 -3	0.394 +0.01	91 -2.72	12.2 -0.3	90.2 +1.7	close	Xmax 12.2 mm < 12.5 mm: lower excursion-limited SPL	+
Ground Zero GZUW 300SQ	25.3 -1.7	0.423 +0.04	86.6 -7.12	12.9 +0.4	88 -0.5	close	8 Ω vs 4 Ω: amp load changes	+
TC Sounds EPIC 12 DVC v2009	24 -3	0.399 +0.02	91.2 -2.52	11.7 -0.8	90.1 +1.6	close	Xmax 11.7 mm < 12.5 mm: lower excursion-limited SPL	+
Pioneer TS-W12PRS	24 -3	0.392 +0.01	93 -0.72	10.3 -2.2	90.4 +1.9	close	300 W vs 500 W: lower power handling · Xmax 10.3 mm < 12.5 mm: lower excursion-limited SPL	+
Alpine SWG-1244	28 +1	0.38 =	75 -18.72	10 -2.5	87.7 -0.8	close	250 W vs 500 W: lower power handling · Xmax 10 mm < 12.5 mm: lower excursion-limited SPL	+
Infinity REFERENCE 1260W	23.5 -3.5	0.39 +0.01	83 -10.72	13 +0.5	86 -2.5	close	300 W vs 500 W: lower power handling	+
Morel ULTIMO 124	26 -1	0.421 +0.04	73.8 -19.92	14.6 +2.1	89 +0.5	close		+
Audio System R12	27.7 +0.7	0.35 -0.03	84.3 -9.42	8.5 -4	88.6 +0.1	usable	Xmax 8.5 mm < 12.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the ZERO 12 PRO →

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.