the box Speaker 12-280/8-A

12" · 8 Ω · 280 W · 96.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	50.6 Hz
Qts	0.472
Qes	0.51
Qms	6.33
Vas	72.8 L
Sd	510.7 cm²
Xmax	5.5 mm
Re	5.7 Ω
Bl	13.3 T·m
Mms	49.7 g
Pe	280 W
Sensitivity	96.1 dB

Alignment hint

EBP	99 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 58.5 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
Elder Audio 12LB075-U	50 -0.6	0.472 =	72.8 =	5.5 =	96 -0.1	close		+
Radian CRS1230	48 -2.6	0.464 -0.01	76 +3.2	5.5 =	95.8 -0.3	close		+
Eminence DELTA 12 LFA	51 +0.4	0.477 +0.01	67.9 -4.9	4.8 -0.7	95.7 -0.4	close	Xmax 4.8 mm < 5.5 mm: lower excursion-limited SPL	+
Fane 12-500LF	50 -0.6	0.495 +0.02	66 -6.8	5.5 =	95.2 -0.9	close		+
Fane SOVEREIGN 12-500LF	50 -0.6	0.495 +0.02	66 -6.8	5.5 =	95.2 -0.9	close		+
Faital PRO 12PR330	52 +1.4	0.49 +0.02	76.3 +3.5	7.27 +1.77	97 +0.9	close	16 Ω vs 8 Ω: amp load changes	+
Eminence DELTA 12 LF v2	51 +0.4	0.477 +0.01	67.9 -4.9	4.6 -0.9	95.7 -0.4	close	Xmax 4.6 mm < 5.5 mm: lower excursion-limited SPL	+
Beyma 12CMV2	49 -1.6	0.47 =	76 +3.2	7 +1.5	94 -2.1	close		+
DAS Audio 12P	46.2 -4.4	0.459 -0.01	73.6 +0.8	6 +0.5	94.6 -1.5	close		+
Eminence DELTA-12LFA	51 +0.4	0.47 =	67.9 -4.9	4.8 -0.7	94.6 -1.5	close	Xmax 4.8 mm < 5.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the Speaker 12-280/8-A →

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.