B&C 12FG100
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 34 Hz |
| Qts | 0.36 |
| Qes | 0.39 |
| Qms | 5.1 |
| Vas | 49 L |
| Sd | 522 cm² |
| Xmax | 10.3 mm |
| Re | 4.9 Ω |
| Bl | 21.4 T·m |
| Mms | 167.8 g |
| Pe | 1000 W |
| Sensitivity | 91 dB |
Alignment hint
| EBP | 87 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 17.1 L |
EBP 50-100: works in either a sealed or ported 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 FG 100 | 34 = | 0.362 = | 49 = | 9.5 -0.8 | 91 = | close | Xmax 9.5 mm < 10.3 mm: lower excursion-limited SPL | + |
| Ground Zero GZRW 30SPL vp | 33.3 -0.7 | 0.357 = | 52 +3 | 9.1 -1.2 | 92 +1 | close | 750 W vs 1000 W: lower power handling · Xmax 9.1 mm < 10.3 mm: lower excursion-limited SPL | + |
| B&C 12FG100 | 34 = | 0.32 -0.04 | 53 +4 | 10.3 = | 91 = | close | 4 Ω vs 8 Ω: amp load changes | + |
| Ground Zero GZRW 12XS-AL | 30 -4 | 0.395 +0.04 | 52 +3 | 8.9 -1.4 | 90.4 -0.6 | close | 4 Ω vs 8 Ω: amp load changes · 600 W vs 1000 W: lower power handling · Xmax 8.9 mm < 10.3 mm: lower excursion-limited SPL | + |
| B&C 12 FG 100 4 Ohms | 34 = | 0.32 -0.04 | 53 +4 | 9.2 -1.1 | 94.3 +3.3 | usable | 4 Ω vs 8 Ω: amp load changes · Xmax 9.2 mm < 10.3 mm: lower excursion-limited SPL | + |
| DLS ULTIMATE IRIDIUM 12 | 33.8 -0.2 | 0.386 +0.03 | 49.2 +0.2 | 7 -3.3 | 88.8 -2.2 | usable | 600 W vs 1000 W: lower power handling · Xmax 7 mm < 10.3 mm: lower excursion-limited SPL | + |
| Dayton Audio SS12-22 | 27 -7 | 0.351 -0.01 | 49.4 +0.4 | 9.6 -0.7 | 88.1 -2.9 | usable | Xmax 9.6 mm < 10.3 mm: lower excursion-limited SPL | + |
| Gladen SQL 12 EXTREME | 33 -1 | 0.353 -0.01 | 36 -13 | 9.4 -0.9 | 93.1 +2.1 | usable | 2 Ω vs 8 Ω: amp load changes · Xmax 9.4 mm < 10.3 mm: lower excursion-limited SPL | + |
| Audiobahn AW120T | 32.4 -1.6 | 0.39 +0.03 | 45 -4 | 9 -1.3 | 87.5 -3.5 | usable | 4 Ω vs 8 Ω: amp load changes · 500 W vs 1000 W: lower power handling · Xmax 9 mm < 10.3 mm: lower excursion-limited SPL | + |
| Hifonics ZX1284 | 33 -1 | 0.38 +0.02 | 63 +14 | 9 -1.3 | 89.2 -1.8 | usable | 4 Ω vs 8 Ω: amp load changes · 750 W vs 1000 W: lower power handling · Xmax 9 mm < 10.3 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 12FG100 →
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.