Monacor SPH-250CTC

10" · 4 Ω · 100 W · 94 dB

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	20 Hz
Qts	0.247
Qes	0.26
Qms	5.12
Vas	220 L
Sd	343 cm²
Xmax	4.5 mm
Re	3.4 Ω
Bl	8.8 T·m
Mms	47.5 g
Pe	100 W
Sensitivity	94 dB

Alignment hint

EBP	77 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 30.6 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-250CTC vp CARBON	20 =	0.247 =	220 =	7.5 +3	94 =	close		+
Ciare HS250	19 -1	0.242 -0.01	194 -26	8 +3.5	93.6 -0.4	close	70 W vs 100 W: lower power handling	+
Accuton S280-6-282	20 =	0.263 +0.02	226 +6	6 +1.5	90.9 -3.1	close	8 Ω vs 4 Ω: amp load changes	+
Monacor SPH-255	23 +3	0.238 -0.01	205 -15	4.5 =	93 -1	close	8 Ω vs 4 Ω: amp load changes · 60 W vs 100 W: lower power handling	+
Focal 10L 6411	22.4 +2.4	0.253 +0.01	210.4 -9.6	8 +3.5	93.5 -0.5	close	8 Ω vs 4 Ω: amp load changes	+
Focal 10N 501	21.8 +1.8	0.231 -0.02	212.7 -7.3	6 +1.5	92.5 -1.5	close	8 Ω vs 4 Ω: amp load changes · 60 W vs 100 W: lower power handling	+
Focal 10N510	21.8 +1.8	0.231 -0.02	212.7 -7.3	6 +1.5	92.5 -1.5	close	8 Ω vs 4 Ω: amp load changes	+
Philips AD10240/W8	23 +3	0.261 +0.01	248.2 +28.2	7.8 +3.3	93.6 -0.4	close	8 Ω vs 4 Ω: amp load changes · 60 W vs 100 W: lower power handling	+
Audax PR240M6 v2014	25 +5	0.26 +0.01	207 -13	4 -0.5	94.1 +0.1	close	8 Ω vs 4 Ω: amp load changes · Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
Accuton AS250-4-552-vp	20 =	0.247 =	162.4 -57.6	9 +4.5	92.6 -1.4	close		+

Compare the closest 3 against the SPH-250CTC →

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.