Oberton 6NM150
Thiele-Small parameters
| Nominal size | 6.5" |
|---|---|
| Impedance | 8 Ω |
| Fs | 124 Hz |
| Qts | 0.377 |
| Qes | 0.403 |
| Qms | 5.96 |
| Vas | 4 L |
| Sd | 139 cm² |
| Xmax | 2.25 mm |
| Re | 6.25 Ω |
| Bl | 11.58 T·m |
| Mms | 11.08 g |
| Pe | 150 W |
| Sensitivity | 97 dB |
Alignment hint
| EBP | 308 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 1.6 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 6MBX44 | 115 -9 | 0.35 -0.03 | 4 = | 3.5 +1.25 | 98 +1 | close | 16 Ω vs 8 Ω: amp load changes | + |
| B&C 6MBX44 | 113 -11 | 0.31 -0.07 | 4.1 +0.1 | 3.5 +1.25 | 98 +1 | usable | + | |
| Beyma 6G40Nd/N | 100 -24 | 0.38 = | 3.7 -0.3 | 3 +0.75 | 94 -3 | usable | + | |
| Oberton 6M150 | 115.1 -8.9 | 0.422 +0.04 | 5.35 +1.35 | 2.25 = | 96 -1 | usable | + | |
| B&C 6PEV13 | 126 +2 | 0.36 -0.02 | 6 +2 | 2.5 +0.25 | 99 +2 | usable | + | |
| B&C 6MDN44 | 140 +16 | 0.4 +0.02 | 2.7 -1.3 | 2.5 +0.25 | 96.5 -0.5 | usable | + | |
| B&C 6MD38 | 130 +6 | 0.44 +0.06 | 3 -1 | 2 -0.25 | 96 -1 | usable | Xmax 2 mm < 2.25 mm: lower excursion-limited SPL | + |
| 18 Sound 6M44 | 102 -22 | 0.29 -0.09 | 3.8 -0.2 | 2.25 = | 95 -2 | usable | + | |
| 18 Sound 6NMB420 | 112 -12 | 0.4 +0.02 | 5.9 +1.9 | 3 +0.75 | 100 +3 | usable | 16 Ω vs 8 Ω: amp load changes | + |
| B&C 6MDN44 | 138 +14 | 0.47 +0.09 | 2.8 -1.2 | 3 +0.75 | 97 = | usable | 16 Ω vs 8 Ω: amp load changes | + |
Compare the closest 3 against the 6NM150 →
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.