B&C 6NDL38
Thiele-Small parameters
| Nominal size | 6.5" |
|---|---|
| Impedance | 4 Ω |
| Fs | 69 Hz |
| Qts | 0.39 |
| Qes | 0.4 |
| Qms | 10.05 |
| Vas | 7.1 L |
| Sd | 132 cm² |
| Xmax | 6 mm |
| Re | 3.1 Ω |
| Bl | 7.8 T·m |
| Mms | 18 g |
| Pe | 150 W |
| Sensitivity | 91 dB |
Alignment hint
| EBP | 173 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 3.1 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 6NDL38 | 72 +3 | 0.42 +0.03 | 7 -0.1 | 6 = | 92 +1 | close | 8 Ω vs 4 Ω: amp load changes | + |
| B&C 6PS44 | 71 +2 | 0.33 -0.06 | 7 -0.1 | 4.5 -1.5 | 93 +2 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 4.5 mm < 6 mm: lower excursion-limited SPL | + |
| B&C 6NDL38 | 70 +1 | 0.5 +0.11 | 8.9 +1.8 | 6 = | 93 +2 | usable | 16 Ω vs 4 Ω: amp load changes | + |
| B&C 6PS38 | 75 +6 | 0.3 -0.09 | 8 +0.9 | 6 = | 94 +3 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| B&C 6CLA51 | 89 +20 | 0.41 +0.02 | 5.7 -1.4 | 5.5 -0.5 | 93.5 +2.5 | usable | 16 Ω vs 4 Ω: amp load changes · Xmax 5.5 mm < 6 mm: lower excursion-limited SPL | + |
| Beyma 6CMV2 | 90 +21 | 0.34 -0.05 | 6.5 -0.6 | 5.7 -0.3 | 94 +3 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 5.7 mm < 6 mm: lower excursion-limited SPL | + |
| Beyma 6P200Fe | 66 -3 | 0.35 -0.04 | 8.8 +1.7 | 4 -2 | 93 +2 | usable | 16 Ω vs 4 Ω: amp load changes · Xmax 4 mm < 6 mm: lower excursion-limited SPL | + |
| 18 Sound 6NTLW2000 | 86 +17 | 0.38 -0.01 | 4.8 -2.3 | 4.9 -1.1 | 93 +2 | usable | 16 Ω vs 4 Ω: amp load changes · Xmax 4.9 mm < 6 mm: lower excursion-limited SPL | + |
| Oberton 6NB150 | 62.32 -6.68 | 0.28 -0.11 | 9.3 +2.2 | 5.5 -0.5 | 92 +1 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 5.5 mm < 6 mm: lower excursion-limited SPL | + |
| 18 Sound 6NTLW2000 | 86 +17 | 0.35 -0.04 | 4.6 -2.5 | 4.9 -1.1 | 93 +2 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 4.9 mm < 6 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 6NDL38 →
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.