Decware DHM 108B

10" · 8 Ω · 275 W · 91 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	35 Hz
Qts	0.316
Qes	0.33
Qms	7.49
Vas	53 L
Sd	363.2 cm²
Xmax	5.5 mm
Re	6.9 Ω
Bl	18.2 T·m
Mms	72.2 g
Pe	275 W
Sensitivity	91 dB

Alignment hint

EBP	106 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 13.2 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
Focal 11K 7512	38 +3	0.353 +0.04	51.9 -1.1	5.3 -0.2	91.6 +0.6	close	175 W vs 275 W: lower power handling · Xmax 5.3 mm < 5.5 mm: lower excursion-limited SPL	+
Sica 10 SR 2.5 CP	34.5 -0.5	0.32 =	66.7 +13.7	6 +0.5	93 +2	close		+
SICA 10 SR 2.5 CP 8 Ohms v2017	34.5 -0.5	0.323 +0.01	66.7 +13.7	6 +0.5	92.9 +1.9	close		+
Faital PRO 10RS430 vp B184423	36.3 +1.3	0.293 -0.02	43 -10	7 +1.5	91 =	close		+
TAD AL-1103	34 -1	0.27 -0.05	53 =	4.5 -1	91 =	close	150 W vs 275 W: lower power handling · Xmax 4.5 mm < 5.5 mm: lower excursion-limited SPL	+
Dayton Audio ST255-8	41.1 +6.1	0.31 -0.01	48.7 -4.3	5.5 =	93.3 +2.3	close		+
Faital PRO 10RS430 v2026	32 -3	0.301 -0.02	61.5 +8.5	9.7 +4.2	90.8 -0.2	close		+
Visaton TIW250XS 8 Ohms v2	33 -2	0.328 +0.01	66 +13	7.9 +2.4	91.8 +0.8	close	200 W vs 275 W: lower power handling	+
Soundstream SS-10R	35 =	0.375 +0.06	51 -2	6 +0.5	93.7 +2.7	close	4 Ω vs 8 Ω: amp load changes · 200 W vs 275 W: lower power handling	+
Volt RV2501	39 +4	0.332 +0.02	47 -6	5 -0.5	92.5 +1.5	close	Xmax 5 mm < 5.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the DHM 108B →

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.