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Stereo Integrity HT 18

18" · 4 Ω · 2000 W · 92.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size18"
Impedance4 Ω
Fs17 Hz
Qts0.383
Qes0.41
Qms5.8
Vas411.9 L
Sd1178.4 cm²
Xmax25.1 mm
Re3.5 Ω
Bl19.4 T·m
Mms414.2 g
Pe2000 W
Sensitivity92.5 dB

Alignment hint

EBP41 · sealed
Sealed Vb (Qtc ≈ 0.71)≈ 171 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
CSS Audio Maelstrom 18 DVC by Exodus Audio17.4 +0.40.376 -0.01313 -98.914.7 -10.491.2 -1.3usable1000 W vs 2000 W: lower power handling · Xmax 14.7 mm < 25.1 mm: lower excursion-limited SPL+
Stereo Integrity HST-18 Dual 2 Ohms16.4 -0.60.388 +0.01267 -144.919 -6.189.7 -2.8usableXmax 19 mm < 25.1 mm: lower excursion-limited SPL+
Stereo Integrity HST-18 MKII15.6 -1.40.327 -0.06307 -104.919 -6.190.4 -2.1usableXmax 19 mm < 25.1 mm: lower excursion-limited SPL+
Stereo Integrity HST-18 MkIII14.8 -2.20.357 -0.03284 -127.919 -6.189.5 -3usableXmax 19 mm < 25.1 mm: lower excursion-limited SPL+
Dayton Audio RSS460HO-419.6 +2.60.387 =298 -113.912.8 -12.392.9 +0.4usable900 W vs 2000 W: lower power handling · Xmax 12.8 mm < 25.1 mm: lower excursion-limited SPL+
BMS 18N862 vp24.8 +7.80.383 =345.6 -66.316.2 -8.994.8 +2.3usable8 Ω vs 4 Ω: amp load changes · 1500 W vs 2000 W: lower power handling · Xmax 16.2 mm < 25.1 mm: lower excursion-limited SPL+
Aura Sound NS18-992-4A20 +30.47 +0.09322 -89.914.5 -10.693.2 +0.7usable800 W vs 2000 W: lower power handling · Xmax 14.5 mm < 25.1 mm: lower excursion-limited SPL+
BMS 18N86024 +70.372 -0.01304 -107.915 -10.193.7 +1.2usable8 Ω vs 4 Ω: amp load changes · 1500 W vs 2000 W: lower power handling · Xmax 15 mm < 25.1 mm: lower excursion-limited SPL+
BMS 18N86225.1 +8.10.34 -0.04312 -99.919 -6.195 +2.5usable8 Ω vs 4 Ω: amp load changes · 1500 W vs 2000 W: lower power handling · Xmax 19 mm < 25.1 mm: lower excursion-limited SPL+
FI Audio HT-321.3 +4.30.423 +0.04235.9 -17617 -8.192.9 +0.4usableXmax 17 mm < 25.1 mm: lower excursion-limited SPL+

Compare the closest 3 against the HT 18 →

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.