Monacor SPH-250TC v2009

10" · 4 Ω · 100 W · 93.1 dB

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	26 Hz
Qts	0.25
Qes	0.27
Qms	3.31
Vas	84 L
Sd	346 cm²
Xmax	4.5 mm
Re	3.4 Ω
Bl	12.4 T·m
Mms	74.9 g
Pe	100 W
Sensitivity	93.1 dB

Alignment hint

EBP	96 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 12 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
Monacor SPH-250TC v2011	26 =	0.25 =	84 =	4.5 =	93.1 =	close		+
Blaupunkt TSW 250	27 +1	0.259 +0.01	67.8 -16.2	5.6 +1.1	92.3 -0.8	close		+
SB Acoustics SW26SFC38-4	28 +2	0.31 +0.06	84 =	5.5 +1	93 -0.1	close		+
ATS Acoustics HG25 vp Double ferrite	29.8 +3.8	0.26 +0.01	94.2 +10.2	4 -0.5	92.6 -0.5	close	8 Ω vs 4 Ω: amp load changes · Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
Audax PR240Z2	25 -1	0.261 +0.01	112 +28	5 +0.5	94.1 +1	close		+
HiVi S10IIP	27 +1	0.287 +0.04	98.1 +14.1	7 +2.5	92.9 -0.2	close	8 Ω vs 4 Ω: amp load changes	+
SEAS 25F-EWX 4 vp	27 +1	0.289 +0.04	100 +16	4 -0.5	93.2 +0.1	usable	60 W vs 100 W: lower power handling · Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
Audiotechnology 10C772510KAP	25 -1	0.24 -0.01	110 +26	8.6 +4.1	92.1 -1	usable	8 Ω vs 4 Ω: amp load changes	+
Axon 10K01	25 -1	0.286 +0.04	104.6 +20.6	7 +2.5	92.9 -0.2	usable		+
Vifa M26WR09-04	27 +1	0.28 +0.03	113 +29	6.5 +2	93 -0.1	usable	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the SPH-250TC v2009 →

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.