Dayton Audio SD270A-88 DVC

10" · 4 Ω · 80 W · 91.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	26.2 Hz
Qts	0.433
Qes	0.5
Qms	3.23
Vas	107.5 L
Sd	346.4 cm²
Xmax	6 mm
Re	3.16 Ω
Bl	7.8 T·m
Mms	57.7 g
Pe	80 W
Sensitivity	91.9 dB

Alignment hint

EBP	52 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 64.5 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
SB Acoustics SB26SFCL38-4	27.4 +1.2	0.434 =	104 -3.5	7.2 +1.2	92.4 +0.5	close		+
Dayton Audio DA270-8 10	27.8 +1.6	0.429 =	108.5 +1	6.1 +0.1	89.3 -2.6	close	8 Ω vs 4 Ω: amp load changes	+
Dayton Audio SD270-88 v2009	25 -1.2	0.379 -0.05	110.4 +2.9	6 =	92.1 +0.2	close		+
Dayton Audio DA270-8	27.8 +1.6	0.43 =	108.5 +1	6.1 +0.1	88.1 -3.8	close	8 Ω vs 4 Ω: amp load changes	+
Dayton Audio SD270-88	29.6 +3.4	0.44 +0.01	112.2 +4.7	6 =	93.7 +1.8	close		+
JBL LE10A	30 +3.8	0.41 -0.02	101.9 -5.6	6.1 +0.1	92.5 +0.6	close	8 Ω vs 4 Ω: amp load changes · 60 W vs 80 W: lower power handling	+
Beyma 10BR60 V2 vp JF rouge	30.7 +4.5	0.435 =	113.7 +6.2	6.5 +0.5	90.2 -1.7	close	8 Ω vs 4 Ω: amp load changes	+
Beyma 10BR60 V2	31 +4.8	0.471 +0.04	108.2 +0.7	6.5 +0.5	90.6 -1.3	close	8 Ω vs 4 Ω: amp load changes	+
Sony XS-L100C	28.1 +1.9	0.362 -0.07	104 -3.5	6.3 +0.3	93.4 +1.5	close		+
Audiotechnology 10B772510KAP	25 -1.2	0.415 -0.02	128 +20.5	8.6 +2.6	89.7 -2.2	close	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the SD270A-88 DVC →

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.