Philips AD1256 vp A
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 36.9 Hz |
| Qts | 0.59 |
| Qes | 0.68 |
| Qms | 4.44 |
| Vas | 244.9 L |
| Sd | 572.6 cm² |
| Xmax | 4.3 mm |
| Re | 7.8 Ω |
| Bl | 9.6 T·m |
| Mms | 35 g |
| Pe | 40 W |
| Sensitivity | 94.7 dB |
Alignment hint
| EBP | 54 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 561.2 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 |
|---|---|---|---|---|---|---|---|---|
| Philips AD5200 vp A | 36.9 = | 0.59 = | 244.9 = | 4.3 = | 94.7 = | close | + | |
| Cabasse 30BZ18 v1 | 36 -0.9 | 0.616 +0.03 | 243 -1.9 | 4 -0.3 | 94.8 +0.1 | close | Xmax 4 mm < 4.3 mm: lower excursion-limited SPL | + |
| Cabasse 30BZ24 vp oriu2 | 37 +0.1 | 0.543 -0.05 | 223 -21.9 | 4 -0.3 | 93.6 -1.1 | close | 16 Ω vs 8 Ω: amp load changes · Xmax 4 mm < 4.3 mm: lower excursion-limited SPL | + |
| Sphynx SP-W12-PRO-2 | 33 -3.9 | 0.574 -0.02 | 284 +39.1 | 4.3 = | 94.5 -0.2 | close | + | |
| Alpine 6002CX vp | 33.5 -3.4 | 0.548 -0.04 | 246.4 +1.5 | 4.1 -0.2 | 97 +2.3 | close | Xmax 4.1 mm < 4.3 mm: lower excursion-limited SPL | + |
| Audax PR300T4 série vp | 37 +0.1 | 0.519 -0.07 | 220 -24.9 | 4 -0.3 | 95.6 +0.9 | close | Xmax 4 mm < 4.3 mm: lower excursion-limited SPL | + |
| Audio Nirvana SUPER 12AL | 37 +0.1 | 0.635 +0.05 | 236 -8.9 | 3 -1.3 | 94.6 -0.1 | close | Xmax 3 mm < 4.3 mm: lower excursion-limited SPL | + |
| Audio Nirvana 12AL | 37 +0.1 | 0.65 +0.06 | 236 -8.9 | 3 -1.3 | 94.5 -0.2 | close | 30 W vs 40 W: lower power handling · Xmax 3 mm < 4.3 mm: lower excursion-limited SPL | + |
| Altec 412 vp1 | 33.7 -3.2 | 0.625 +0.04 | 230.5 -14.4 | 3 -1.3 | 95 +0.3 | usable | 20 W vs 40 W: lower power handling · Xmax 3 mm < 4.3 mm: lower excursion-limited SPL | + |
| PHY-HP HB30LB15 | 36 -0.9 | 0.567 -0.02 | 224 -20.9 | 3 -1.3 | 91.9 -2.8 | usable | 16 Ω vs 8 Ω: amp load changes · Xmax 3 mm < 4.3 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the AD1256 vp A →
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.