RCF MB 10G251

10" · 8 Ω · 300 W · 98.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	76 Hz
Qts	0.335
Qes	0.35
Qms	8
Vas	24 L
Sd	350 cm²
Xmax	3.5 mm
Re	5.2 Ω
Bl	14.9 T·m
Mms	31.4 g
Pe	300 W
Sensitivity	98.6 dB

Alignment hint

EBP	217 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 6.9 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
Fane STUDIO 10M	73 -3	0.34 +0.01	27.2 +3.2	3.1 -0.4	97.9 -0.7	close	200 W vs 300 W: lower power handling · Xmax 3.1 mm < 3.5 mm: lower excursion-limited SPL	+
LaVoce WAN102.50	78 +2	0.35 +0.01	22.4 -1.6	5.1 +1.6	97 -1.6	close		+
LaVoce WAF102.50A	71 -5	0.311 -0.02	23.6 -0.4	3.2 -0.3	97.7 -0.9	close	Xmax 3.2 mm < 3.5 mm: lower excursion-limited SPL	+
B&C 10 CXN 64	68 -8	0.312 -0.02	23 -1	3.5 =	96.9 -1.7	close		+
Monacor SP-25A/200NEO	69 -7	0.349 +0.01	25 +1	3.1 -0.4	97.2 -1.4	close	200 W vs 300 W: lower power handling · Xmax 3.1 mm < 3.5 mm: lower excursion-limited SPL	+
18 Sound 10NMB420 vp CF1	84.8 +8.8	0.318 -0.02	26 +2	3.3 -0.2	100.2 +1.6	close	Xmax 3.3 mm < 3.5 mm: lower excursion-limited SPL	+
LaVoce WAF102.51	66 -10	0.346 +0.01	26 +2	4.4 +0.9	96.6 -2	close		+
Faital PRO 10HX230	65 -11	0.348 +0.01	25.8 +1.8	4 +0.5	96.6 -2	close		+
Eminence DELTA 10	66 -10	0.332 =	30.5 +6.5	3.5 =	97.7 -0.9	close		+
Eminence DELTA 10 A	66 -10	0.332 =	30.5 +6.5	3.5 =	97.7 -0.9	close		+

Compare the closest 3 against the MB 10G251 →

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.