← all drivers

BMS 18N860

18" · 8 Ω · 1500 W · 93.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size18"
Impedance8 Ω
Fs24 Hz
Qts0.372
Qes0.4
Qms5.33
Vas304 L
Sd1213 cm²
Xmax15 mm
Re5.7 Ω
Bl25.3 T·m
Mms298.4 g
Pe1500 W
Sensitivity93.7 dB

Alignment hint

EBP60 · 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
BMS 18N862 vp24.8 +0.80.383 +0.01345.6 +41.616.2 +1.294.8 +1.1close+
BMS 18N86225.1 +1.10.34 -0.03312 +819 +495 +1.3close+
Beyma 18PWB1000Fe/S27 +30.38 +0.01317 +1312.5 -2.596 +2.3close1000 W vs 1500 W: lower power handling · Xmax 12.5 mm < 15 mm: lower excursion-limited SPL+
Dayton Audio RSS460HO-419.6 -4.40.387 +0.02298 -612.8 -2.292.9 -0.8close4 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 v201627 +30.381 +0.01317 +1311.7 -3.395.2 +1.5close1000 W vs 1500 W: lower power handling · Xmax 11.7 mm < 15 mm: lower excursion-limited SPL+
CSS Audio Maelstrom 18 DVC by Exodus Audio17.4 -6.60.376 =313 +914.7 -0.391.2 -2.5usable4 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 500024 =0.431 +0.06324 +2010.6 -4.495.3 +1.6usable4 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-321.3 -2.70.423 +0.05235.9 -68.117 +292.9 -0.8usable4 Ω vs 8 Ω: amp load changes+
TC Sounds LMS-ULTRA 540020.5 -3.50.325 -0.05240.7 -63.316 +193.1 -0.6usable4 Ω vs 8 Ω: amp load changes+
AER SB 1826 +20.383 +0.01288 -168.3 -6.794.5 +0.8usable500 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.