18 Sound 6M44
Thiele-Small parameters
| Nominal size | 6.5" |
|---|---|
| Impedance | 8 Ω |
| Fs | 102 Hz |
| Qts | 0.29 |
| Qes | 0.31 |
| Qms | 4.4 |
| Vas | 3.8 L |
| Sd | 132 cm² |
| Xmax | 2.25 mm |
| Re | 5.3 Ω |
| Bl | 13.4 T·m |
| Mms | 16 g |
| Pe | 200 W |
| Sensitivity | 95 dB |
Alignment hint
| EBP | 329 · 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 |
|---|---|---|---|---|---|---|---|---|
| B&C 6CLA51 | 96 -6 | 0.32 +0.03 | 4.3 +0.5 | 4.8 +2.55 | 94.5 -0.5 | close | + | |
| B&C 6MBX44 | 113 +11 | 0.31 +0.02 | 4.1 +0.3 | 3.5 +1.25 | 98 +3 | usable | + | |
| Beyma 6G40Nd/N | 100 -2 | 0.38 +0.09 | 3.7 -0.1 | 3 +0.75 | 94 -1 | usable | + | |
| B&C 6MBX44 | 115 +13 | 0.35 +0.06 | 4 +0.2 | 3.5 +1.25 | 98 +3 | usable | 16 Ω vs 8 Ω: amp load changes | + |
| Oberton 6NM150 | 124 +22 | 0.377 +0.09 | 4 +0.2 | 2.25 = | 97 +2 | usable | 150 W vs 200 W: lower power handling | + |
| 18 Sound 6NMB900 | 100 -2 | 0.34 +0.05 | 6.65 +2.85 | 3 +0.75 | 96 +1 | usable | 16 Ω vs 8 Ω: amp load changes | + |
| 18 Sound 6NTLW2000 | 86 -16 | 0.35 +0.06 | 4.6 +0.8 | 4.9 +2.65 | 93 -2 | usable | + | |
| 18 Sound 6NMB420 | 110 +8 | 0.33 +0.04 | 6.1 +2.3 | 3 +0.75 | 100 +5 | usable | + | |
| Oberton 6M150 | 115.1 +13.1 | 0.422 +0.13 | 5.35 +1.55 | 2.25 = | 96 +1 | usable | 150 W vs 200 W: lower power handling | + |
| 18 Sound 6NTLW2000 | 86 -16 | 0.38 +0.09 | 4.8 +1 | 4.9 +2.65 | 93 -2 | usable | 16 Ω vs 8 Ω: amp load changes | + |
Compare the closest 3 against the 6M44 →
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.