Volt BM2500.4

10" · 8 Ω · 200 W · 93.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	32 Hz
Qts	0.213
Qes	0.24
Qms	1.9
Vas	73 L
Sd	299 cm²
Xmax	6.6 mm
Re	5.9 Ω
Bl	14.5 T·m
Mms	42.5 g
Pe	200 W
Sensitivity	93.3 dB

Alignment hint

EBP	133 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 7.3 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
AE Speakers TD10X	35 +3	0.27 +0.06	67.5 -5.5	7 +0.4	92.4 -0.9	usable		+
Visaton TIW250XS 8 Ohms	31 -1	0.298 +0.09	73 =	8.1 +1.5	91.8 -1.5	usable		+
Beyma 10LW30/N	38 +6	0.234 +0.02	56 -17	7 +0.4	94.2 +0.9	usable		+
Blaupunkt TSW 250	27 -5	0.259 +0.05	67.8 -5.2	5.6 -1	92.3 -1	usable	4 Ω vs 8 Ω: amp load changes · Xmax 5.6 mm < 6.6 mm: lower excursion-limited SPL	+
Eminence Kappa Pro-10LF	39 +7	0.28 +0.07	72.97 -0.03	7.2 +0.6	91.6 -1.7	usable		+
Fostex FW 220	29 -3	0.195 -0.02	76 +3	3.7 -2.9	92.5 -0.8	usable	50 W vs 200 W: lower power handling · Xmax 3.7 mm < 6.6 mm: lower excursion-limited SPL	+
AE Speakers TD10M-8	40.1 +8.1	0.238 +0.02	59.2 -13.8	6 -0.6	94.5 +1.2	usable	Xmax 6 mm < 6.6 mm: lower excursion-limited SPL	+
Triangle T28DE120C	30 -2	0.327 +0.11	73.1 +0.1	6.5 -0.1	92.2 -1.1	usable	150 W vs 200 W: lower power handling · Xmax 6.5 mm < 6.6 mm: lower excursion-limited SPL	+
Eminence KAPPA PRO 10 LF	39 +7	0.281 +0.07	73 =	7.2 +0.6	95.4 +2.1	usable		+
AE Speakers TD10M	40.6 +8.6	0.235 +0.02	59.1 -13.9	6 -0.6	94.7 +1.4	usable	Xmax 6 mm < 6.6 mm: lower excursion-limited SPL	+

Compare the closest 3 against the BM2500.4 →

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.