LaVoce FBASS08-18
Thiele-Small parameters
| Nominal size | 8" |
|---|---|
| Impedance | 8 Ω |
| Fs | 53 Hz |
| Qts | 0.4 |
| Qes | 0.43 |
| Qms | 6.89 |
| Vas | 23.64 L |
| Sd | 235.06 cm² |
| Xmax | 4.5 mm |
| Re | 5.6 Ω |
| Bl | 11.42 T·m |
| Mms | 30.1 g |
| Pe | 150 W |
| Sensitivity | 92.5 dB |
Alignment hint
| EBP | 123 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 11.1 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 |
|---|---|---|---|---|---|---|---|---|
| B&C 8BG51 | 52 -1 | 0.4 = | 18 -5.64 | 6.5 +2 | 92 -0.5 | close | + | |
| 18 Sound 8MB400 | 64 +11 | 0.38 -0.02 | 23.9 +0.26 | 5.8 +1.3 | 95 +2.5 | close | + | |
| 18 Sound 8NMB420 | 66 +13 | 0.41 +0.01 | 24.53 +0.89 | 5.8 +1.3 | 95 +2.5 | usable | 16 Ω vs 8 Ω: amp load changes | + |
| Beyma 8"P300Fe/N | 53 = | 0.31 -0.09 | 24.8 +1.16 | 6 +1.5 | 94 +1.5 | usable | + | |
| Sica 8 S 2.5 CP | 54 +1 | 0.33 -0.07 | 18.6 -5.04 | 5 +0.5 | 93 +0.5 | usable | + | |
| B&C 8FG64 | 53 = | 0.35 -0.05 | 16.9 -6.74 | 7.5 +3 | 92 -0.5 | usable | 16 Ω vs 8 Ω: amp load changes | + |
| LaVoce NBASS08-20 | 55 +2 | 0.48 +0.08 | 18.4 -5.24 | 6.5 +2 | 92 -0.5 | usable | + | |
| B&C 8FG51 | 49 -4 | 0.32 -0.08 | 20 -3.64 | 6.5 +2 | 93 +0.5 | usable | + | |
| B&C 8FMB51 | 68 +15 | 0.39 -0.01 | 20.5 -3.14 | 5.5 +1 | 96 +3.5 | usable | 16 Ω vs 8 Ω: amp load changes | + |
| Faital PRO 8RS250 | 56 +3 | 0.32 -0.08 | 18.3 -5.34 | 6.92 +2.42 | 93 +0.5 | usable | + |
Compare the closest 3 against the FBASS08-18 →
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.