Dayton Audio RSS390HO-4

15" · 4 Ω · 800 W · 91.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	24.2 Hz
Qts	0.384
Qes	0.42
Qms	4.48
Vas	109.7 L
Sd	829.6 cm²
Xmax	9.6 mm
Re	3.3 Ω
Bl	21.3 T·m
Mms	380.4 g
Pe	800 W
Sensitivity	91.5 dB

Alignment hint

EBP	58 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 45.9 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
Stereo Integrity SQL-15 15	23.8 -0.4	0.418 +0.03	115 +5.3	12.1 +2.5	90.9 -0.6	close		+
Dayton Audio SS15-22	27 +2.8	0.388 =	98 -11.7	10.3 +0.7	90.4 -1.1	close	8 Ω vs 4 Ω: amp load changes	+
JL Audio 13W7AE-D1.5	23.5 -0.7	0.448 +0.06	104.3 -5.4	12.1 +2.5	91.7 +0.2	close		+
Rockford Fosgate T0D215	25.5 +1.3	0.438 +0.05	94.4 -15.3	9.3 -0.3	90.9 -0.6	close	Xmax 9.3 mm < 9.6 mm: lower excursion-limited SPL	+
Kicker 43CV152	26.4 +2.2	0.389 +0.01	121.4 +11.7	7.5 -2.1	92.5 +1	close	500 W vs 800 W: lower power handling · Xmax 7.5 mm < 9.6 mm: lower excursion-limited SPL	+
Ciare 15.00SW-4	29 +4.8	0.407 +0.02	113 +3.3	11.1 +1.5	93.4 +1.9	close		+
TC Sounds LMS R15	23.6 -0.6	0.446 +0.06	123 +13.3	12.1 +2.5	90.2 -1.3	close		+
MTX Audio T615-22	25.7 +1.5	0.431 +0.05	110 +0.3	7.1 -2.5	92.1 +0.6	close	450 W vs 800 W: lower power handling · Xmax 7.1 mm < 9.6 mm: lower excursion-limited SPL	+
Eminence LAB 15 \|	28 +3.8	0.35 -0.03	103.61 -6.09	11.8 +2.2	88.5 -3	usable	6 Ω vs 4 Ω: amp load changes · 600 W vs 800 W: lower power handling	+
JBL W15GTI	25.2 +1	0.476 +0.09	132.2 +22.5	10.2 +0.6	92.5 +1	usable		+

Compare the closest 3 against the RSS390HO-4 →

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.