Dayton Audio RSS315HO-4

12" · 4 Ω · 700 W · 89.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	31.6 Hz
Qts	0.407
Qes	0.45
Qms	4.27
Vas	33.5 L
Sd	514.7 cm²
Xmax	7.2 mm
Re	3.4 Ω
Bl	20.5 T·m
Mms	281.2 g
Pe	700 W
Sensitivity	89.4 dB

Alignment hint

EBP	70 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 16.6 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
Dayton Audio RSS315HE-22	32 +0.4	0.461 +0.05	32.4 -1.1	8.2 +1	88.1 -1.3	close	8 Ω vs 4 Ω: amp load changes	+
Rockford Fosgate T112D2	31 -0.6	0.474 +0.07	34.8 +1.3	8.2 +1	89 -0.4	close		+
Hifonics MXZ 12D2	31 -0.6	0.443 +0.04	30 -3.5	10.3 +3.1	87.3 -2.1	close	8 Ω vs 4 Ω: amp load changes	+
DD Audio REDLINE 700 SERIES	28.3 -3.3	0.434 +0.03	39.6 +6.1	7 -0.2	90.7 +1.3	close	Xmax 7 mm < 7.2 mm: lower excursion-limited SPL	+
DD Audio 712D4 v2022	28.3 -3.3	0.434 +0.03	39.6 +6.1	7 -0.2	87.7 -1.7	usable	8 Ω vs 4 Ω: amp load changes · Xmax 7 mm < 7.2 mm: lower excursion-limited SPL	+
Audiobahn AW120T	32.4 +0.8	0.39 -0.02	45 +11.5	9 +1.8	87.5 -1.9	usable	500 W vs 700 W: lower power handling	+
TC Sounds LMS R12	28 -3.6	0.43 +0.02	39 +5.5	10.8 +3.6	87.7 -1.7	usable		+
FI Audio Q12 DUAL 2	33.9 +2.3	0.371 -0.04	28.3 -5.2	10.6 +3.4	91.1 +1.7	usable		+
Monacor RAPTOR 12 MK2	34 +2.4	0.523 +0.12	32 -1.5	10.1 +2.9	89.2 -0.2	usable		+
Gladen SQX12	36.7 +5.1	0.405 =	40.9 +7.4	7 -0.2	92.6 +3.2	usable	Xmax 7 mm < 7.2 mm: lower excursion-limited SPL	+

Compare the closest 3 against the RSS315HO-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.