BMS 18N860
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 24 Hz |
| Qts | 0.372 |
| Qes | 0.4 |
| Qms | 5.33 |
| Vas | 304 L |
| Sd | 1213 cm² |
| Xmax | 15 mm |
| Re | 5.7 Ω |
| Bl | 25.3 T·m |
| Mms | 298.4 g |
| Pe | 1500 W |
| Sensitivity | 93.7 dB |
Alignment hint
| EBP | 60 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 116.3 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 |
|---|---|---|---|---|---|---|---|---|
| BMS 18N862 vp | 24.8 +0.8 | 0.383 +0.01 | 345.6 +41.6 | 16.2 +1.2 | 94.8 +1.1 | close | + | |
| BMS 18N862 | 25.1 +1.1 | 0.34 -0.03 | 312 +8 | 19 +4 | 95 +1.3 | close | + | |
| Beyma 18PWB1000Fe/S | 27 +3 | 0.38 +0.01 | 317 +13 | 12.5 -2.5 | 96 +2.3 | close | 1000 W vs 1500 W: lower power handling · Xmax 12.5 mm < 15 mm: lower excursion-limited SPL | + |
| Dayton Audio RSS460HO-4 | 19.6 -4.4 | 0.387 +0.02 | 298 -6 | 12.8 -2.2 | 92.9 -0.8 | close | 4 Ω vs 8 Ω: amp load changes · 900 W vs 1500 W: lower power handling · Xmax 12.8 mm < 15 mm: lower excursion-limited SPL | + |
| Beyma 18PWB1000/FE v2016 | 27 +3 | 0.381 +0.01 | 317 +13 | 11.7 -3.3 | 95.2 +1.5 | close | 1000 W vs 1500 W: lower power handling · Xmax 11.7 mm < 15 mm: lower excursion-limited SPL | + |
| CSS Audio Maelstrom 18 DVC by Exodus Audio | 17.4 -6.6 | 0.376 = | 313 +9 | 14.7 -0.3 | 91.2 -2.5 | usable | 4 Ω vs 8 Ω: amp load changes · 1000 W vs 1500 W: lower power handling · Xmax 14.7 mm < 15 mm: lower excursion-limited SPL | + |
| Magnat AGRESSOR 5000 | 24 = | 0.431 +0.06 | 324 +20 | 10.6 -4.4 | 95.3 +1.6 | usable | 4 Ω vs 8 Ω: amp load changes · 1000 W vs 1500 W: lower power handling · Xmax 10.6 mm < 15 mm: lower excursion-limited SPL | + |
| FI Audio HT-3 | 21.3 -2.7 | 0.423 +0.05 | 235.9 -68.1 | 17 +2 | 92.9 -0.8 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| TC Sounds LMS-ULTRA 5400 | 20.5 -3.5 | 0.325 -0.05 | 240.7 -63.3 | 16 +1 | 93.1 -0.6 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| AER SB 18 | 26 +2 | 0.383 +0.01 | 288 -16 | 8.3 -6.7 | 94.5 +0.8 | usable | 500 W vs 1500 W: lower power handling · Xmax 8.3 mm < 15 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 18N860 →
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.