Monacor BLACKBASS-12 8 Ohms

12" · 8 Ω · 300 W · 87.1 dB

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	29 Hz
Qts	0.482
Qes	0.51
Qms	8.8
Vas	61 L
Sd	490 cm²
Xmax	7.5 mm
Re	7.2 Ω
Bl	20.7 T·m
Mms	166.2 g
Pe	300 W
Sensitivity	87.1 dB

Alignment hint

EBP	57 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 52.9 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
Monacor BLACKBASS-12 4 Ohms	29 =	0.482 =	61 =	7.5 =	90.1 +3	close	4 Ω vs 8 Ω: amp load changes	+
Alpine SWA-12S4	30 +1	0.49 +0.01	67.79 +6.79	10 +2.5	87.2 +0.1	close	4 Ω vs 8 Ω: amp load changes	+
Audiomobile ELITE 2212	28 -1	0.48 =	59.46 -1.54	12.7 +5.2	85.8 -1.3	close	4 Ω vs 8 Ω: amp load changes	+
Powerbass S-1204D	31 +2	0.5 +0.02	65 +4	9.5 +2	87.2 +0.1	close	4 Ω vs 8 Ω: amp load changes	+
Wavecor SW312WA03	28 -1	0.479 =	61 =	7.3 -0.2	90.2 +3.1	close	4 Ω vs 8 Ω: amp load changes · Xmax 7.3 mm < 7.5 mm: lower excursion-limited SPL	+
Wavecor SW312WA04	29 =	0.569 +0.09	61 =	7.5 =	86.8 -0.3	close		+
JBL GTO 1214	28 -1	0.469 -0.01	58.2 -2.8	7.3 -0.2	89.4 +2.3	close	4 Ω vs 8 Ω: amp load changes · Xmax 7.3 mm < 7.5 mm: lower excursion-limited SPL	+
Rockford Fosgate P3D4-12	27.7 -1.3	0.517 +0.04	57.7 -3.3	9.4 +1.9	86.3 -0.8	close		+
Audio System HX12 SQ	28.2 -0.8	0.5 +0.02	68 +7	11.8 +4.3	86.1 -1	close	4 Ω vs 8 Ω: amp load changes	+
Rockford Fosgate P3D2-12	26.5 -2.5	0.491 +0.01	57.7 -3.3	9.5 +2	89 +1.9	close	4 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the BLACKBASS-12 8 Ohms →

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.