Eminence DEFINIMAX 4012 HO

12" · 8 Ω · 600 W · 95.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	46 Hz
Qts	0.356
Qes	0.38
Qms	5.74
Vas	59.4 L
Sd	552 cm²
Xmax	6.2 mm
Re	5.85 Ω
Bl	19.6 T·m
Mms	86.1 g
Pe	600 W
Sensitivity	95.2 dB

Alignment hint

EBP	121 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 20.2 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
Oberton 12B45V	47.88 +1.88	0.354 =	58.51 -0.89	10.5 +4.3	94 -1.2	close	450 W vs 600 W: lower power handling	+
Faital PRO 12HP1010	45 -1	0.34 -0.02	56.5 -2.9	9.25 +3.05	96 +0.8	close		+
Eminence DEFINIMAX 4012HO	51 +5	0.35 -0.01	53.801 -5.6	6.2 =	94.8 -0.4	close		+
Beyma POWER 12 vp	42.7 -3.3	0.358 =	53.1 -6.3	5.9 -0.3	96.2 +1	close	4 Ω vs 8 Ω: amp load changes · Xmax 5.9 mm < 6.2 mm: lower excursion-limited SPL	+
Precision Devices PD.123C01	46 =	0.32 -0.04	66.82 +7.42	7 +0.8	94.9 -0.3	close	400 W vs 600 W: lower power handling	+
B&C 12 NDL 88 16 Ohms	50 +4	0.363 +0.01	55 -4.4	7.1 +0.9	93.1 -2.1	close	16 Ω vs 8 Ω: amp load changes	+
18 Sound 12NTLS3500	41 -5	0.34 -0.02	63 +3.6	7.9 +1.7	94.5 -0.7	close	4 Ω vs 8 Ω: amp load changes	+
Celestion CF1230BMB	43 -3	0.381 +0.03	60.7 +1.3	5.5 -0.7	94 -1.2	close	350 W vs 600 W: lower power handling · Xmax 5.5 mm < 6.2 mm: lower excursion-limited SPL	+
Precision Devices PD.12SB30	47 +1	0.31 -0.05	66.82 +7.42	7 +0.8	95.2 =	close	400 W vs 600 W: lower power handling	+
18 Sound 12NLW9300 v2022	47 +1	0.416 +0.06	56 -3.4	8 +1.8	95.4 +0.2	close		+

Compare the closest 3 against the DEFINIMAX 4012 HO →

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.