B&C 12PH32
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 42 Hz |
| Qts | 0.28 |
| Qes | 0.3 |
| Qms | 4.3 |
| Vas | 155 L |
| Sd | 522 cm² |
| Xmax | 3 mm |
| Re | 5.8 Ω |
| Bl | 13.3 T·m |
| Mms | 35 g |
| Pe | 250 W |
| Sensitivity | 97.7 dB |
Alignment hint
| EBP | 140 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 28.8 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 PH 32 | 42 = | 0.28 = | 155 = | 3 = | 99.2 +1.5 | close | + | |
| Beyma 12G125 | 41 -1 | 0.269 -0.01 | 122 -33 | 4 +1 | 97.2 -0.5 | close | 125 W vs 250 W: lower power handling | + |
| Fostex F 356 | 46.9 +4.9 | 0.272 -0.01 | 143 -12 | 2.6 -0.4 | 99.3 +1.6 | close | 60 W vs 250 W: lower power handling · Xmax 2.6 mm < 3 mm: lower excursion-limited SPL | + |
| Eminence KL3012CX-8 | 42 = | 0.299 +0.02 | 111.5 -43.5 | 3.7 +0.7 | 97.7 = | close | + | |
| Beyma SM112/N | 38 -4 | 0.27 -0.01 | 138 -17 | 7.3 +4.3 | 97.2 -0.5 | close | + | |
| Siare 31TE 2B vp oriu | 39.4 -2.6 | 0.305 +0.02 | 152 -3 | 4.5 +1.5 | 94 -3.7 | close | 16 Ω vs 8 Ω: amp load changes · 120 W vs 250 W: lower power handling | + |
| Fane STUDIO 12B | 47 +5 | 0.274 -0.01 | 144 -11 | 5.1 +2.1 | 100.8 +3.1 | usable | + | |
| AE Speakers TD12M | 38.1 -3.9 | 0.25 -0.03 | 140 -15 | 6 +3 | 97.3 -0.4 | usable | + | |
| Eminence KAPPA-12A | 45 +3 | 0.27 -0.01 | 112.1 -42.9 | 3.2 +0.2 | 99.3 +1.6 | usable | + | |
| Eminence KAPPA 12 | 45 +3 | 0.27 -0.01 | 112.1 -42.9 | 3.2 +0.2 | 99.3 +1.6 | usable | + |
Compare the closest 3 against the 12PH32 →
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.