P.Audio BM-12W
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 38 Hz |
| Qts | 0.335 |
| Qes | 0.386 |
| Qms | 2.5 |
| Vas | 90.27 L |
| Sd | 509 cm² |
| Xmax | 4.5 mm |
| Re | 3.4 Ω |
| Bl | 12.3 T·m |
| Mms | 71.4 g |
| Pe | 400 W |
| Sensitivity | 92.9 dB |
Alignment hint
| EBP | 98 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 26.1 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 |
|---|---|---|---|---|---|---|---|---|
| Ciare HSB322 4-4 | 36 -2 | 0.363 +0.03 | 83 -7.27 | 5.4 +0.9 | 93 +0.1 | close | 8 Ω vs 4 Ω: amp load changes · 200 W vs 400 W: lower power handling | + |
| Audax PR330M0 vp1 | 37.7 -0.3 | 0.326 -0.01 | 95.9 +5.63 | 4 -0.5 | 95 +2.1 | close | 8 Ω vs 4 Ω: amp load changes · 150 W vs 400 W: lower power handling · Xmax 4 mm < 4.5 mm: lower excursion-limited SPL | + |
| Kartesian WOM300_vDIY | 37 -1 | 0.362 +0.03 | 91.7 +1.43 | 6.4 +1.9 | 94.6 +1.7 | close | 8 Ω vs 4 Ω: amp load changes · 250 W vs 400 W: lower power handling | + |
| Beyma SM112/W | 42 +4 | 0.335 = | 90 -0.27 | 5.5 +1 | 96.1 +3.2 | close | 8 Ω vs 4 Ω: amp load changes · 250 W vs 400 W: lower power handling | + |
| JBL 2204J | 45 +7 | 0.35 +0.01 | 87.8 -2.47 | 5.6 +1.1 | 92.7 -0.2 | close | 16 Ω vs 4 Ω: amp load changes | + |
| Eminence OMEGA PRO 12 | 39 +1 | 0.308 -0.03 | 88.4 -1.87 | 4.8 +0.3 | 96 +3.1 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Volt RV3143 v2014 | 35 -3 | 0.302 -0.03 | 86 -4.27 | 5.2 +0.7 | 93.8 +0.9 | close | 8 Ω vs 4 Ω: amp load changes · 300 W vs 400 W: lower power handling | + |
| Beyma 12BR70 v2 | 35 -3 | 0.355 +0.02 | 100 +9.73 | 4.1 -0.4 | 93.4 +0.5 | close | 8 Ω vs 4 Ω: amp load changes · 125 W vs 400 W: lower power handling · Xmax 4.1 mm < 4.5 mm: lower excursion-limited SPL | + |
| MCM Electronics 55-2952 | 38 = | 0.338 = | 108 +17.73 | 3.8 -0.7 | 94.3 +1.4 | close | 8 Ω vs 4 Ω: amp load changes · 175 W vs 400 W: lower power handling · Xmax 3.8 mm < 4.5 mm: lower excursion-limited SPL | + |
| Focal 13 WX | 33.6 -4.4 | 0.366 +0.03 | 89 -1.27 | 6 +1.5 | 92.1 -0.8 | close | 8 Ω vs 4 Ω: amp load changes | + |
Compare the closest 3 against the BM-12W →
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.