Eminence DEFINIMAX 4012HO

12" · 8 Ω · 600 W · 94.8 dB

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	51 Hz
Qts	0.35
Qes	0.361
Qms	11.03
Vas	53.801 L
Sd	551 cm²
Xmax	6.2 mm
Re	5.53 Ω
Bl	19.56 T·m
Mms	78 g
Pe	600 W
Sensitivity	94.8 dB

Alignment hint

EBP	141 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 17.5 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
B&C 12 NDL 88 16 Ohms	50 -1	0.363 +0.01	55 +1.2	7.1 +0.9	93.1 -1.7	close	16 Ω vs 8 Ω: amp load changes	+
SB Audience NERO-12MWN700D vp JustDiyIt	54.4 +3.4	0.347 =	53.6 -0.2	6.2 =	97.5 +2.7	close		+
Eminence DEFINIMAX 4012 HO	46 -5	0.356 +0.01	59.4 +5.6	6.2 =	95.2 +0.4	close		+
B&C 12NDL88	50 -1	0.37 +0.02	55 +1.2	8 +1.8	97 +2.2	close	16 Ω vs 8 Ω: amp load changes	+
B&C 12 PLB 100	50 -1	0.365 +0.02	47 -6.8	6 -0.2	95.8 +1	close	Xmax 6 mm < 6.2 mm: lower excursion-limited SPL	+
Oberton 12B45V	47.88 -3.12	0.354 =	58.51 +4.71	10.5 +4.3	94 -0.8	close	450 W vs 600 W: lower power handling	+
Beyma POWER 12 vp	42.7 -8.3	0.358 +0.01	53.1 -0.7	5.9 -0.3	96.2 +1.4	close	4 Ω vs 8 Ω: amp load changes · Xmax 5.9 mm < 6.2 mm: lower excursion-limited SPL	+
Oberton 12NMB35	54.42 +3.42	0.36 +0.01	54.29 +0.49	6.75 +0.55	99 +4.2	close		+
Faital PRO 12HP1010	45 -6	0.34 -0.01	56.5 +2.7	9.25 +3.05	96 +1.2	close		+
Beyma 112Nd/W	48 -3	0.415 +0.07	55 +1.2	7.4 +1.2	95 +0.2	close		+

Compare the closest 3 against the DEFINIMAX 4012HO →

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.