18 Sound 6ND410
Thiele-Small parameters
| Nominal size | 6.5" |
|---|---|
| Impedance | 8 Ω |
| Fs | 120 Hz |
| Qts | 0.24 |
| Qes | 0.27 |
| Qms | 2.2 |
| Vas | 6.2 L |
| Sd | 143 cm² |
| Xmax | 2 mm |
| Re | 5.9 Ω |
| Bl | 11.6 T·m |
| Mms | 8.2 g |
| Pe | 180 W |
| Sensitivity | 102 dB |
Alignment hint
| EBP | 444 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 0.8 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 |
|---|---|---|---|---|---|---|---|---|
| 18 Sound 6NMB420 | 110 -10 | 0.33 +0.09 | 6.1 -0.1 | 3 +1 | 100 -2 | usable | + | |
| B&C 6PEV13 | 126 +6 | 0.36 +0.12 | 6 -0.2 | 2.5 +0.5 | 99 -3 | usable | 120 W vs 180 W: lower power handling | + |
| 18 Sound 6NMB420 | 112 -8 | 0.4 +0.16 | 5.9 -0.3 | 3 +1 | 100 -2 | usable | 16 Ω vs 8 Ω: amp load changes | + |
| B&C 6MBX44 | 113 -7 | 0.31 +0.07 | 4.1 -2.1 | 3.5 +1.5 | 98 -4 | usable | + | |
| 18 Sound 6NMB900 | 100 -20 | 0.34 +0.1 | 6.65 +0.45 | 3 +1 | 96 -6 | usable | 16 Ω vs 8 Ω: amp load changes | + |
| 18 Sound 6ND410 | 149 +29 | 0.48 +0.24 | 6.2 = | 2 = | 102 = | usable | 16 Ω vs 8 Ω: amp load changes | + |
| B&C 6MBX44 | 115 -5 | 0.35 +0.11 | 4 -2.2 | 3.5 +1.5 | 98 -4 | risky | 16 Ω vs 8 Ω: amp load changes | + |
| 18 Sound 6M44 | 102 -18 | 0.29 +0.05 | 3.8 -2.4 | 2.25 +0.25 | 95 -7 | risky | + | |
| Oberton 6M150 | 115.1 -4.9 | 0.422 +0.18 | 5.35 -0.85 | 2.25 +0.25 | 96 -6 | risky | + | |
| Oberton 6NM150 | 124 +4 | 0.377 +0.14 | 4 -2.2 | 2.25 +0.25 | 97 -5 | risky | + |
Compare the closest 3 against the 6ND410 →
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.