BMS 8N515
Thiele-Small parameters
| Nominal size | 8" |
|---|---|
| Impedance | 8 Ω |
| Fs | 87.7 Hz |
| Qts | 0.3 |
| Qes | 0.32 |
| Qms | 4.34 |
| Vas | 11.04 L |
| Sd | 222 cm² |
| Xmax | 4 mm |
| Re | 5.4 Ω |
| Bl | 13.8 T·m |
| Mms | 20.6 g |
| Pe | 200 W |
| Sensitivity | 96 dB |
Alignment hint
| EBP | 274 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 2.4 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 8S215 | 87.7 = | 0.31 +0.01 | 11.04 = | 4.25 +0.25 | 96 = | close | + | |
| Oberton 8NMB250v4 | 82.03 -5.67 | 0.258 -0.04 | 10.89 -0.15 | 4.5 +0.5 | 96 = | close | + | |
| LaVoce WAN082.01 | 85 -2.7 | 0.32 +0.02 | 9 -2.04 | 5.8 +1.8 | 96 = | close | + | |
| 18 Sound 8NTLW2000 | 74 -13.7 | 0.26 -0.04 | 11.3 +0.26 | 4.4 +0.4 | 96.5 +0.5 | close | 16 Ω vs 8 Ω: amp load changes | + |
| Sica 8 N 2.5 PL | 77 -10.7 | 0.3 = | 13.7 +2.66 | 3.5 -0.5 | 96.4 +0.4 | close | Xmax 3.5 mm < 4 mm: lower excursion-limited SPL | + |
| B&C 8NDL64 | 80 -7.7 | 0.25 -0.05 | 9.6 -1.44 | 4.5 +0.5 | 97 +1 | usable | + | |
| B&C 8NW51 | 76 -11.7 | 0.25 -0.05 | 10.6 -0.44 | 6 +2 | 97 +1 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| Faital PRO 8PR155 | 85 -2.7 | 0.37 +0.07 | 9.4 -1.64 | 3.57 -0.43 | 97 +1 | usable | Xmax 3.57 mm < 4 mm: lower excursion-limited SPL | + |
| LaVoce WAF082.00 | 78 -9.7 | 0.37 +0.07 | 11.92 +0.88 | 6.3 +2.3 | 95 -1 | usable | + | |
| B&C 8NDL64 | 73 -14.7 | 0.24 -0.06 | 11.8 +0.76 | 4.5 +0.5 | 97 +1 | usable | 16 Ω vs 8 Ω: amp load changes | + |
Compare the closest 3 against the 8N515 →
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.