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Stereo Integrity HST-18 Dual 2 Ohms

18" · 4 Ω · 2000 W · 89.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size18"
Impedance4 Ω
Fs16.4 Hz
Qts0.388
Qes0.41
Qms7.1
Vas267 L
Sd1178 cm²
Xmax19 mm
Re3.9 Ω
Bl25.9 T·m
Mms686.2 g
Pe2000 W
Sensitivity89.7 dB

Alignment hint

EBP40 · sealed
Sealed Vb (Qtc ≈ 0.71)≈ 115 L

EBP < 50: favours a sealed (closed) 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
Stereo Integrity HST-18 MkIII14.8 -1.60.357 -0.03284 +1719 =89.5 -0.2close+
Stereo Integrity HST-18 MKII15.6 -0.80.327 -0.06307 +4019 =90.4 +0.7close+
CSS Audio Maelstrom 18 DVC by Exodus Audio17.4 +10.376 -0.01313 +4614.7 -4.391.2 +1.5usable1000 W vs 2000 W: lower power handling · Xmax 14.7 mm < 19 mm: lower excursion-limited SPL+
Stereo Integrity HT 1817 +0.60.383 -0.01411.9 +144.925.1 +6.192.5 +2.8usable+
Dayton Audio RSS460HO-419.6 +3.20.387 =298 +3112.8 -6.292.9 +3.2usable900 W vs 2000 W: lower power handling · Xmax 12.8 mm < 19 mm: lower excursion-limited SPL+
FI Audio HT-321.3 +4.90.423 +0.03235.9 -31.117 -292.9 +3.2usableXmax 17 mm < 19 mm: lower excursion-limited SPL+
Dayton Audio SS18-2221 +4.60.374 -0.01224 -4312.8 -6.290.6 +0.9usable8 Ω vs 4 Ω: amp load changes · 1300 W vs 2000 W: lower power handling · Xmax 12.8 mm < 19 mm: lower excursion-limited SPL+
TC Sounds LMS-ULTRA 540020.5 +4.10.325 -0.06240.7 -26.316 -393.1 +3.4usableXmax 16 mm < 19 mm: lower excursion-limited SPL+
Dayton Audio RSS460HO-4 v201518.8 +2.40.322 -0.07272 +511.9 -7.193.1 +3.4usable900 W vs 2000 W: lower power handling · Xmax 11.9 mm < 19 mm: lower excursion-limited SPL+
BMS 18N86024 +7.60.372 -0.02304 +3715 -493.7 +4usable8 Ω vs 4 Ω: amp load changes · 1500 W vs 2000 W: lower power handling · Xmax 15 mm < 19 mm: lower excursion-limited SPL+

Compare the closest 3 against the HST-18 Dual 2 Ohms →

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.