Volt B250

10" · 8 Ω · 250 W · 92.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	31.7 Hz
Qts	0.377
Qes	0.43
Qms	3.04
Vas	104 L
Sd	346 cm²
Xmax	6 mm
Re	5.1 Ω
Bl	9.8 T·m
Mms	40.8 g
Pe	250 W
Sensitivity	92.8 dB

Alignment hint

EBP	74 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 41.3 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
Focal 11C 726	30.9 -0.8	0.378 =	120 +16	6.9 +0.9	92.4 -0.4	close	100 W vs 250 W: lower power handling	+
Focal 10V 6411	32.9 +1.2	0.378 =	116.9 +12.9	7 +1	93.4 +0.6	close	150 W vs 250 W: lower power handling	+
JBL LE10A	30 -1.7	0.41 +0.03	101.9 -2.1	6.1 +0.1	92.5 -0.3	close	60 W vs 250 W: lower power handling	+
Sony XS-L100C	28.1 -3.6	0.362 -0.02	104 =	6.3 +0.3	93.4 +0.6	close	4 Ω vs 8 Ω: amp load changes · 150 W vs 250 W: lower power handling	+
Focal 10N511	29.6 -2.1	0.371 -0.01	121 +17	6 =	92.2 -0.6	close	60 W vs 250 W: lower power handling	+
Focal 11V 7511 v2008	30.8 -0.9	0.362 -0.02	94.3 -9.7	8 +2	91.5 -1.3	close	175 W vs 250 W: lower power handling	+
JBL 127H-1	31 -0.7	0.357 -0.02	112 +8	5 -1	92.7 -0.1	close	50 W vs 250 W: lower power handling · Xmax 5 mm < 6 mm: lower excursion-limited SPL	+
Eminence LEGEND BP102 4 Ohms	34.5 +2.8	0.385 +0.01	103.8 -0.2	6.2 +0.2	97 +4.2	close	4 Ω vs 8 Ω: amp load changes	+
Dayton Audio SD270-88 v2009	25 -6.7	0.379 =	110.4 +6.4	6 =	92.1 -0.7	close	4 Ω vs 8 Ω: amp load changes · 80 W vs 250 W: lower power handling	+
Sica 10 H 2 CS	30.3 -1.4	0.37 -0.01	84.3 -19.7	6 =	90.8 -2	close		+

Compare the closest 3 against the B250 →

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.