B&C 12 FG 100 4 Ohms
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 34 Hz |
| Qts | 0.32 |
| Qes | 0.34 |
| Qms | 5.4 |
| Vas | 53 L |
| Sd | 522 cm² |
| Xmax | 9.2 mm |
| Re | 2.9 Ω |
| Bl | 17 T·m |
| Mms | 157.9 g |
| Pe | 1000 W |
| Sensitivity | 94.3 dB |
Alignment hint
| EBP | 100 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 13.6 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 12FG100 | 34 = | 0.32 = | 53 = | 10.3 +1.1 | 91 -3.3 | close | + | |
| Pioneer TS-W305C (prodance) | 34 = | 0.311 -0.01 | 54 +1 | 6.8 -2.4 | 94.5 +0.2 | close | 400 W vs 1000 W: lower power handling · Xmax 6.8 mm < 9.2 mm: lower excursion-limited SPL | + |
| Ground Zero GZRW 30SPL vp | 33.3 -0.7 | 0.357 +0.04 | 52 -1 | 9.1 -0.1 | 92 -2.3 | close | 8 Ω vs 4 Ω: amp load changes · 750 W vs 1000 W: lower power handling · Xmax 9.1 mm < 9.2 mm: lower excursion-limited SPL | + |
| Sica 12 PNS 4 | 41.7 +7.7 | 0.31 -0.01 | 50.2 -2.8 | 9.5 +0.3 | 94.5 +0.2 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Pioneer TS-W305C | 32.7 -1.3 | 0.34 +0.02 | 51.5 -1.5 | 7.1 -2.1 | 93.4 -0.9 | close | 400 W vs 1000 W: lower power handling · Xmax 7.1 mm < 9.2 mm: lower excursion-limited SPL | + |
| B&C 12 FG 100 | 34 = | 0.362 +0.04 | 49 -4 | 9.5 +0.3 | 91 -3.3 | close | 8 Ω vs 4 Ω: amp load changes | + |
| B&C 12FG100 | 34 = | 0.36 +0.04 | 49 -4 | 10.3 +1.1 | 91 -3.3 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Focal 33VX | 34 = | 0.322 = | 66.5 +13.5 | 6.4 -2.8 | 94.7 +0.4 | usable | 350 W vs 1000 W: lower power handling · Xmax 6.4 mm < 9.2 mm: lower excursion-limited SPL | + |
| Soundstream SPLX-122 | 35 +1 | 0.322 = | 40.2 -12.8 | 8 -1.2 | 92 -2.3 | usable | 8 Ω vs 4 Ω: amp load changes · 750 W vs 1000 W: lower power handling · Xmax 8 mm < 9.2 mm: lower excursion-limited SPL | + |
| B&C 12BG100 | 39 +5 | 0.33 +0.01 | 41 -12 | 10.5 +1.3 | 93 -1.3 | usable | 8 Ω vs 4 Ω: amp load changes | + |
Compare the closest 3 against the 12 FG 100 4 Ohms →
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.