Beyma 12MCB700
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 51 Hz |
| Qts | 0.27 |
| Qes | 0.29 |
| Qms | 3.9 |
| Vas | 59.5 L |
| Sd | 550 cm² |
| Xmax | 7 mm |
| Re | 5.4 Ω |
| Bl | 20.4 T·m |
| Mms | 69 g |
| Pe | 700 W |
| Sensitivity | 98 dB |
Alignment hint
| EBP | 176 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 10.2 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 12NDL88 | 51 = | 0.27 = | 52 -7.5 | 8 +1 | 98 = | close | + | |
| 18 Sound 12W750 | 55 +4 | 0.27 = | 58 -1.5 | 7 = | 97 -1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Faital PRO 12FH520 | 50 -1 | 0.27 = | 65.5 +6 | 7 = | 97 -1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Oberton 12MB35 | 51.43 +0.43 | 0.267 = | 50.07 -9.43 | 6.75 -0.25 | 98 = | close | Xmax 6.75 mm < 7 mm: lower excursion-limited SPL | + |
| Beyma 12MC700Nd | 51 = | 0.24 -0.03 | 58 -1.5 | 7 = | 99 +1 | close | + | |
| B&C 12NDL76 | 50 -1 | 0.27 = | 69 +9.5 | 7 = | 100 +2 | close | 16 Ω vs 8 Ω: amp load changes · 400 W vs 700 W: lower power handling | + |
| B&C 12 NDL 88 | 51 = | 0.274 = | 52 -7.5 | 5.7 -1.3 | 97.8 -0.2 | close | Xmax 5.7 mm < 7 mm: lower excursion-limited SPL | + |
| Faital PRO 12FH520-4 | 50 -1 | 0.268 = | 57 -2.5 | 5.8 -1.2 | 99.9 +1.9 | close | 4 Ω vs 8 Ω: amp load changes · Xmax 5.8 mm < 7 mm: lower excursion-limited SPL | + |
| Faital PRO 12FH520 | 50 -1 | 0.29 +0.02 | 73.7 +14.2 | 7.25 +0.25 | 98 = | close | + | |
| JBL 1400 PRO | 52 +1 | 0.314 +0.04 | 62.3 +2.8 | 7.6 +0.6 | 99 +1 | close | + |
Compare the closest 3 against the 12MCB700 →
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.