Eminence LA12850

12" · 8 Ω · 800 W · 96.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	46 Hz
Qts	0.312
Qes	0.32
Qms	12.73
Vas	66.1 L
Sd	545.4 cm²
Xmax	5 mm
Re	5.87 Ω
Bl	20 T·m
Mms	75.6 g
Pe	800 W
Sensitivity	96.4 dB

Alignment hint

EBP	144 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 16 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
Precision Devices PD 123C01	46 =	0.314 =	66.8 +0.7	5.6 +0.6	96.4 =	close	400 W vs 800 W: lower power handling	+
Precision Devices PD.12SB30	47 +1	0.31 =	66.82 +0.72	7 +2	95.2 -1.2	close	400 W vs 800 W: lower power handling	+
Precision Devices PD.123C01	46 =	0.32 +0.01	66.82 +0.72	7 +2	94.9 -1.5	close	400 W vs 800 W: lower power handling	+
LaVoce WSN122.50-4	49 +3	0.29 -0.02	64.43 -1.67	5.3 +0.3	97 +0.6	close	4 Ω vs 8 Ω: amp load changes · 250 W vs 800 W: lower power handling	+
Eminence IMPERO 12 A	42.8 -3.2	0.322 +0.01	70.2 +4.1	6.2 +1.2	95.8 -0.6	close		+
DAS Audio 12H	48 +2	0.302 -0.01	57 -9.1	5.9 +0.9	96.1 -0.3	close	600 W vs 800 W: lower power handling	+
Ciare NDC 12-3	45.5 -0.5	0.285 -0.03	73.6 +7.5	5.4 +0.4	97 +0.6	close	400 W vs 800 W: lower power handling	+
JBL 2206H	52 +6	0.316 =	62.3 -3.8	5.9 +0.9	97.9 +1.5	close	600 W vs 800 W: lower power handling	+
LaVoce NBASS12-30-8	46 =	0.291 -0.02	68.8 +2.7	4 -1	97.2 +0.8	close	400 W vs 800 W: lower power handling · Xmax 4 mm < 5 mm: lower excursion-limited SPL	+
LaVoce NBASS12-30-16	48 +2	0.34 +0.03	69.83 +3.73	7.3 +2.3	97.5 +1.1	close	16 Ω vs 8 Ω: amp load changes · 400 W vs 800 W: lower power handling	+

Compare the closest 3 against the LA12850 →

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.