18 Sound 8NMB750
Thiele-Small parameters
| Nominal size | 8" |
|---|---|
| Impedance | 16 Ω |
| Fs | 91 Hz |
| Qts | 0.37 |
| Qes | 0.39 |
| Qms | 5.9 |
| Vas | 7.3 L |
| Sd | 230 cm² |
| Xmax | 6.3 mm |
| Re | 10.2 Ω |
| Bl | 21.5 T·m |
| Mms | 30 g |
| Pe | 350 W |
| Sensitivity | 95 dB |
Alignment hint
| EBP | 233 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 2.8 L |
EBP > 100: favours a ported (bass-reflex) 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 8S219 | 82 -9 | 0.41 +0.04 | 9.7 +2.4 | 6.3 = | 94 -1 | usable | 8 Ω vs 16 Ω: amp load changes · 250 W vs 350 W: lower power handling | + |
| LaVoce WAN082.01 | 85 -6 | 0.32 -0.05 | 9 +1.7 | 5.8 -0.5 | 96 +1 | usable | 8 Ω vs 16 Ω: amp load changes · 200 W vs 350 W: lower power handling · Xmax 5.8 mm < 6.3 mm: lower excursion-limited SPL | + |
| 18 Sound 8NMB750 | 88 -3 | 0.27 -0.1 | 6.9 -0.4 | 6.1 -0.2 | 96.5 +1.5 | usable | 8 Ω vs 16 Ω: amp load changes · Xmax 6.1 mm < 6.3 mm: lower excursion-limited SPL | + |
| LaVoce WAF082.00 | 78 -13 | 0.37 = | 11.92 +4.62 | 6.3 = | 95 = | usable | 8 Ω vs 16 Ω: amp load changes · 200 W vs 350 W: lower power handling | + |
| BMS 8N519 | 74.9 -16.1 | 0.37 = | 10.9 +3.6 | 6.3 = | 94 -1 | usable | 8 Ω vs 16 Ω: amp load changes · 250 W vs 350 W: lower power handling | + |
| Faital PRO 8PR155 | 85 -6 | 0.37 = | 9.4 +2.1 | 3.57 -2.73 | 97 +2 | usable | 8 Ω vs 16 Ω: amp load changes · 200 W vs 350 W: lower power handling · Xmax 3.57 mm < 6.3 mm: lower excursion-limited SPL | + |
| B&C 8CL51 | 83 -8 | 0.51 +0.14 | 9.5 +2.2 | 6 -0.3 | 94 -1 | usable | 200 W vs 350 W: lower power handling · Xmax 6 mm < 6.3 mm: lower excursion-limited SPL | + |
| Faital PRO 8FE400 | 100 +9 | 0.48 +0.11 | 9.9 +2.6 | 4.87 -1.43 | 96 +1 | usable | 4 Ω vs 16 Ω: amp load changes · 200 W vs 350 W: lower power handling · Xmax 4.87 mm < 6.3 mm: lower excursion-limited SPL | + |
| BMS 8S215 | 87.7 -3.3 | 0.31 -0.06 | 11.04 +3.74 | 4.25 -2.05 | 96 +1 | usable | 8 Ω vs 16 Ω: amp load changes · 200 W vs 350 W: lower power handling · Xmax 4.25 mm < 6.3 mm: lower excursion-limited SPL | + |
| B&C 8CL51 | 69 -22 | 0.41 +0.04 | 12.5 +5.2 | 6.5 +0.2 | 94 -1 | usable | 8 Ω vs 16 Ω: amp load changes · 200 W vs 350 W: lower power handling | + |
Compare the closest 3 against the 8NMB750 →
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.