18 Sound 8NTLS2000
Thiele-Small parameters
| Nominal size | 8" |
|---|---|
| Impedance | 4 Ω |
| Fs | 43 Hz |
| Qts | 0.24 |
| Qes | 0.24 |
| Qms | 10.4 |
| Vas | 30 L |
| Sd | 227 cm² |
| Xmax | 7.4 mm |
| Re | 3 Ω |
| Bl | 11.1 T·m |
| Mms | 38 g |
| Pe | 350 W |
| Sensitivity | 93.5 dB |
Alignment hint
| EBP | 179 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 3.9 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 |
|---|---|---|---|---|---|---|---|---|
| 18 Sound 8NTLS2000 | 42 -1 | 0.24 = | 28 -2 | 7.4 = | 93 -0.5 | close | 16 Ω vs 4 Ω: amp load changes | + |
| 18 Sound 8NTLS2000 | 41 -2 | 0.19 -0.05 | 27 -3 | 7.4 = | 93.5 = | close | 8 Ω vs 4 Ω: amp load changes | + |
| Faital PRO 8RS350 | 42 -1 | 0.3 +0.06 | 23.7 -6.3 | 7.37 -0.03 | 90 -3.5 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 7.37 mm < 7.4 mm: lower excursion-limited SPL | + |
| Faital PRO 8RS340 | 42 -1 | 0.34 +0.1 | 25.5 -4.5 | 7.33 -0.07 | 91 -2.5 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 7.33 mm < 7.4 mm: lower excursion-limited SPL | + |
| Beyma 8"P300Fe/N | 53 +10 | 0.31 +0.07 | 24.8 -5.2 | 6 -1.4 | 94 +0.5 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 6 mm < 7.4 mm: lower excursion-limited SPL | + |
| 18 Sound 8NMB420 | 61 +18 | 0.28 +0.04 | 33 +3 | 5.8 -1.6 | 95 +1.5 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 5.8 mm < 7.4 mm: lower excursion-limited SPL | + |
| Beyma 8NMFW | 37 -6 | 0.34 +0.1 | 27 -3 | 9 +1.6 | 90 -3.5 | usable | 8 Ω vs 4 Ω: amp load changes · 200 W vs 350 W: lower power handling | + |
| 18 Sound 8NMB420 | 59 +16 | 0.31 +0.07 | 31 +1 | 5.8 -1.6 | 95 +1.5 | usable | Xmax 5.8 mm < 7.4 mm: lower excursion-limited SPL | + |
| B&C 8FG51 | 49 +6 | 0.32 +0.08 | 20 -10 | 6.5 -0.9 | 93 -0.5 | usable | 8 Ω vs 4 Ω: amp load changes · 250 W vs 350 W: lower power handling · Xmax 6.5 mm < 7.4 mm: lower excursion-limited SPL | + |
| 18 Sound 8NW650 | 62 +19 | 0.25 +0.01 | 18.99 -11.01 | 5.5 -1.9 | 95 +1.5 | usable | 16 Ω vs 4 Ω: amp load changes · Xmax 5.5 mm < 7.4 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 8NTLS2000 →
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.