B&C 12PLB76
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 50 Hz |
| Qts | 0.23 |
| Qes | 0.24 |
| Qms | 5.3 |
| Vas | 75 L |
| Sd | 522 cm² |
| Xmax | 5 mm |
| Re | 5 Ω |
| Bl | 18.6 T·m |
| Mms | 51 g |
| Pe | 350 W |
| Sensitivity | 99 dB |
Alignment hint
| EBP | 208 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 8.9 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 PLB 76 | 50 = | 0.229 = | 75 = | 4.4 -0.6 | 99.7 +0.7 | close | Xmax 4.4 mm < 5 mm: lower excursion-limited SPL | + |
| Oberton 12B400 | 50.47 +0.47 | 0.249 +0.02 | 74.74 -0.26 | 5.25 +0.25 | 98 -1 | close | + | |
| P.Audio BM-12CX38 | 48 -2 | 0.221 -0.01 | 72.9 -2.1 | 4.5 -0.5 | 99.3 +0.3 | close | Xmax 4.5 mm < 5 mm: lower excursion-limited SPL | + |
| RCF L 12N301 | 48 -2 | 0.213 -0.02 | 70 -5 | 5 = | 99.1 +0.1 | close | + | |
| Oberton 12B450 | 46.29 -3.71 | 0.235 = | 71.75 -3.25 | 7.75 +2.75 | 99 = | close | + | |
| RCF MB 12N301 | 54 +4 | 0.24 +0.01 | 71 -4 | 4.9 -0.1 | 99.7 +0.7 | close | Xmax 4.9 mm < 5 mm: lower excursion-limited SPL | + |
| P.Audio C12-500MB | 47 -3 | 0.238 +0.01 | 73 -2 | 4.5 -0.5 | 98 -1 | close | Xmax 4.5 mm < 5 mm: lower excursion-limited SPL | + |
| 18 Sound 12MB650 | 48 -2 | 0.23 = | 90 +15 | 5.5 +0.5 | 98 -1 | close | + | |
| 18 Sound 12CX800 | 53 +3 | 0.253 +0.02 | 73 -2 | 4.7 -0.3 | 99.4 +0.4 | close | Xmax 4.7 mm < 5 mm: lower excursion-limited SPL | + |
| 18 Sound 12ND930 | 50 = | 0.21 -0.02 | 70 -5 | 6.5 +1.5 | 98 -1 | close | + |
Compare the closest 3 against the 12PLB76 →
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.