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Dayton Audio SS18-22

18" · 8 Ω · 1300 W · 90.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size18"
Impedance8 Ω
Fs21 Hz
Qts0.374
Qes0.42
Qms3.4
Vas224 L
Sd1188 cm²
Xmax12.8 mm
Re5.4 Ω
Bl29.3 T·m
Mms507.3 g
Pe1300 W
Sensitivity90.6 dB

Alignment hint

EBP50 · flexible
Sealed Vb (Qtc ≈ 0.71)≈ 87 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
FI Audio HT-321.3 +0.30.423 +0.05235.9 +11.917 +4.292.9 +2.3close4 Ω vs 8 Ω: amp load changes+
TC Sounds LMS-ULTRA 540020.5 -0.50.325 -0.05240.7 +16.716 +3.293.1 +2.5close4 Ω vs 8 Ω: amp load changes+
Dayton Audio RSS460HO-419.6 -1.40.387 +0.01298 +7412.8 =92.9 +2.3usable4 Ω vs 8 Ω: amp load changes · 900 W vs 1300 W: lower power handling+
CSS Audio Maelstrom 18 DVC by Exodus Audio17.4 -3.60.376 =313 +8914.7 +1.991.2 +0.6usable4 Ω vs 8 Ω: amp load changes · 1000 W vs 1300 W: lower power handling+
Dayton Audio UM18-22 1819.5 -1.50.487 +0.11216.8 -7.212.2 -0.689 -1.6usable1000 W vs 1300 W: lower power handling · Xmax 12.2 mm < 12.8 mm: lower excursion-limited SPL+
Stereo Integrity HST-18 Dual 2 Ohms16.4 -4.60.388 +0.01267 +4319 +6.289.7 -0.9usable4 Ω vs 8 Ω: amp load changes+
BMS 18N86024 +30.372 =304 +8015 +2.293.7 +3.1usable+
Dayton Audio UMII18-22 ULTIMAX II DVC22 +10.53 +0.16248.2 +24.213.8 +190.7 +0.1usable+
Dayton Audio RSS460HO-4 v201518.8 -2.20.322 -0.05272 +4811.9 -0.993.1 +2.5usable4 Ω vs 8 Ω: amp load changes · 900 W vs 1300 W: lower power handling · Xmax 11.9 mm < 12.8 mm: lower excursion-limited SPL+
Dayton Audio UM18-22 v201519.5 -1.50.533 +0.16212 -1212.6 -0.288.6 -2usable1000 W vs 1300 W: lower power handling · Xmax 12.6 mm < 12.8 mm: lower excursion-limited SPL+

Compare the closest 3 against the SS18-22 →

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.