the box Speaker 12-280/8-W

12" · 8 Ω · 280 W · 94 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	38 Hz
Qts	0.304
Qes	0.316
Qms	8.187
Vas	75.7 L
Sd	510.7 cm²
Xmax	5.5 mm
Re	6.6 Ω
Bl	20.6 T·m
Mms	84.8 g
Pe	280 W
Sensitivity	94 dB

Alignment hint

EBP	120 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 17.2 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
Volt RV3143 v2014	35 -3	0.302 =	86 +10.3	5.2 -0.3	93.8 -0.2	close	Xmax 5.2 mm < 5.5 mm: lower excursion-limited SPL	+
BMS 12N804	39 +1	0.29 -0.01	71 -4.7	8 +2.5	95 +1	close		+
RCF L12P300	40 +2	0.27 -0.03	76 +0.3	5 -0.5	94.2 +0.2	close	150 W vs 280 W: lower power handling · Xmax 5 mm < 5.5 mm: lower excursion-limited SPL	+
18 Sound 12NTLX3500	39 +1	0.33 +0.03	79.6 +3.9	7.9 +2.4	95.5 +1.5	close		+
Beyma 12LX60	42 +4	0.3 =	66 -9.7	9 +3.5	93.8 -0.2	close		+
Focal 33VX	34 -4	0.322 +0.02	66.5 -9.2	6.4 +0.9	94.7 +0.7	close	4 Ω vs 8 Ω: amp load changes	+
Eminence OMEGA PRO 12	39 +1	0.308 =	88.4 +12.7	4.8 -0.7	96 +2	close	Xmax 4.8 mm < 5.5 mm: lower excursion-limited SPL	+
SICA 12 S 3 CP v2018	42 +4	0.34 +0.04	76.9 +1.2	6 +0.5	95.8 +1.8	close		+
Eminence IMPERO 12 A	42.8 +4.8	0.322 +0.02	70.2 -5.5	6.2 +0.7	95.8 +1.8	close		+
Sica 12 S 3 PL	42 +4	0.34 +0.04	76.9 +1.2	7 +1.5	95.8 +1.8	close		+

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

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.