B&C 12BG100
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 39 Hz |
| Qts | 0.33 |
| Qes | 0.35 |
| Qms | 6.8 |
| Vas | 41 L |
| Sd | 522 cm² |
| Xmax | 10.5 mm |
| Re | 5.1 Ω |
| Bl | 23 T·m |
| Mms | 152 g |
| Pe | 1000 W |
| Sensitivity | 93 dB |
Alignment hint
| EBP | 111 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 11.4 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 BG 100 | 39 = | 0.333 = | 41 = | 7.8 -2.7 | 92.4 -0.6 | close | Xmax 7.8 mm < 10.5 mm: lower excursion-limited SPL | + |
| Sica 12 SR 4 CP | 38 -1 | 0.3 -0.03 | 41.7 +0.7 | 9 -1.5 | 92.6 -0.4 | close | Xmax 9 mm < 10.5 mm: lower excursion-limited SPL | + |
| Faital PRO 12RS1066 | 42 +3 | 0.33 = | 31.5 -9.5 | 12.45 +1.95 | 93 = | close | + | |
| Soundstream SPLX-122 | 35 -4 | 0.322 -0.01 | 40.2 -0.8 | 8 -2.5 | 92 -1 | close | 750 W vs 1000 W: lower power handling · Xmax 8 mm < 10.5 mm: lower excursion-limited SPL | + |
| Faital PRO 12RS550 | 42 +3 | 0.37 +0.04 | 45.4 +4.4 | 9.25 -1.25 | 93 = | close | 500 W vs 1000 W: lower power handling · Xmax 9.25 mm < 10.5 mm: lower excursion-limited SPL | + |
| Gladen SQL 12 EXTREME | 33 -6 | 0.353 +0.02 | 36 -5 | 9.4 -1.1 | 93.1 +0.1 | usable | 2 Ω vs 8 Ω: amp load changes · Xmax 9.4 mm < 10.5 mm: lower excursion-limited SPL | + |
| Sica 12 PNS 4 | 41.7 +2.7 | 0.31 -0.02 | 50.2 +9.2 | 9.5 -1 | 94.5 +1.5 | usable | Xmax 9.5 mm < 10.5 mm: lower excursion-limited SPL | + |
| Eminence DEFINIMAX 4012ULF-8 | 40 +1 | 0.31 -0.02 | 41.342 +0.34 | 6.7 -3.8 | 91 -2 | usable | Xmax 6.7 mm < 10.5 mm: lower excursion-limited SPL | + |
| Faital PRO 12HP1030 | 45 +6 | 0.3 -0.03 | 35.9 -5.1 | 12.45 +1.95 | 95 +2 | usable | + | |
| B&C 12FG100 | 34 -5 | 0.32 -0.01 | 53 +12 | 10.3 -0.2 | 91 -2 | usable | 4 Ω vs 8 Ω: amp load changes · Xmax 10.3 mm < 10.5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 12BG100 →
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.