B&C 12 CXN 76
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 42 Hz |
| Qts | 0.195 |
| Qes | 0.2 |
| Qms | 8 |
| Vas | 120 L |
| Sd | 522 cm² |
| Xmax | 4 mm |
| Re | 5 Ω |
| Bl | 17.4 T·m |
| Mms | 45.7 g |
| Pe | 250 W |
| Sensitivity | 100.5 dB |
Alignment hint
| EBP | 210 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 9.9 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 |
|---|---|---|---|---|---|---|---|---|
| B&C 12 HCX 76 | 42 = | 0.195 = | 118.9 -1.1 | 4 = | 100.5 = | close | + | |
| Beyma 12M300 | 45 +3 | 0.199 = | 115 -5 | 3.8 -0.2 | 100.1 -0.4 | close | Xmax 3.8 mm < 4 mm: lower excursion-limited SPL | + |
| B&C 12CXN76 | 42 = | 0.19 -0.01 | 120 = | 6 +2 | 98.3 -2.2 | close | + | |
| 18 Sound 12MB600 | 44 +2 | 0.18 -0.02 | 115 -5 | 4.5 +0.5 | 101 +0.5 | close | + | |
| PHL Audio 4090 | 39 -3 | 0.19 -0.01 | 92 -28 | 5.1 +1.1 | 100.6 +0.1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| PD PD 122 | 42.9 +0.9 | 0.196 = | 90 -30 | 4.7 +0.7 | 98.8 -1.7 | close | + | |
| Precision Devices PD 122 | 42.9 +0.9 | 0.196 = | 90 -30 | 4.7 +0.7 | 98.8 -1.7 | close | + | |
| PD PD 1225C001 | 39 -3 | 0.189 -0.01 | 156 +36 | 5.6 +1.6 | 100.6 +0.1 | close | + | |
| Precision Devices PD 1225C001 | 39 -3 | 0.189 -0.01 | 156 +36 | 5.6 +1.6 | 100.6 +0.1 | close | + | |
| 18 Sound 12MB700 | 49 +7 | 0.19 -0.01 | 101 -19 | 4.5 +0.5 | 101.5 +1 | close | + |
Compare the closest 3 against the 12 CXN 76 →
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.