Stereo Integrity HST-18 MkIII
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 4 Ω |
| Fs | 14.8 Hz |
| Qts | 0.357 |
| Qes | 0.38 |
| Qms | 5.95 |
| Vas | 284 L |
| Sd | 1178.4 cm² |
| Xmax | 19 mm |
| Re | 3.4 Ω |
| Bl | 25.7 T·m |
| Mms | 792.6 g |
| Pe | 2000 W |
| Sensitivity | 89.5 dB |
Alignment hint
| EBP | 39 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 97.2 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
| Driver | Fs (Hz) | Qts | Vas (L) | Xmax (mm) | Sens (dB) | Fit | Notes | Compare |
|---|---|---|---|---|---|---|---|---|
| Stereo Integrity HST-18 Dual 2 Ohms | 16.4 +1.6 | 0.388 +0.03 | 267 -17 | 19 = | 89.7 +0.2 | close | + | |
| Stereo Integrity HST-18 MKII | 15.6 +0.8 | 0.327 -0.03 | 307 +23 | 19 = | 90.4 +0.9 | close | + | |
| CSS Audio Maelstrom 18 DVC by Exodus Audio | 17.4 +2.6 | 0.376 +0.02 | 313 +29 | 14.7 -4.3 | 91.2 +1.7 | usable | 1000 W vs 2000 W: lower power handling · Xmax 14.7 mm < 19 mm: lower excursion-limited SPL | + |
| Stereo Integrity HT 18 | 17 +2.2 | 0.383 +0.03 | 411.9 +127.9 | 25.1 +6.1 | 92.5 +3 | usable | + | |
| Dayton Audio RSS460HO-4 | 19.6 +4.8 | 0.387 +0.03 | 298 +14 | 12.8 -6.2 | 92.9 +3.4 | usable | 900 W vs 2000 W: lower power handling · Xmax 12.8 mm < 19 mm: lower excursion-limited SPL | + |
| TC Sounds LMS-ULTRA 5400 | 20.5 +5.7 | 0.325 -0.03 | 240.7 -43.3 | 16 -3 | 93.1 +3.6 | usable | Xmax 16 mm < 19 mm: lower excursion-limited SPL | + |
| Dayton Audio RSS460HO-4 v2015 | 18.8 +4 | 0.322 -0.03 | 272 -12 | 11.9 -7.1 | 93.1 +3.6 | usable | 900 W vs 2000 W: lower power handling · Xmax 11.9 mm < 19 mm: lower excursion-limited SPL | + |
| Dayton Audio SS18-22 | 21 +6.2 | 0.374 +0.02 | 224 -60 | 12.8 -6.2 | 90.6 +1.1 | usable | 8 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 | + |
| BMS 18N862 | 25.1 +10.3 | 0.34 -0.02 | 312 +28 | 19 = | 95 +5.5 | usable | 8 Ω vs 4 Ω: amp load changes · 1500 W vs 2000 W: lower power handling | + |
| BMS 18N860 | 24 +9.2 | 0.372 +0.02 | 304 +20 | 15 -4 | 93.7 +4.2 | usable | 8 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 MkIII →
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.