Altec 412 vp1
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 33.7 Hz |
| Qts | 0.625 |
| Qes | 0.707 |
| Qms | 5.377 |
| Vas | 230.5 L |
| Sd | 530.9 cm² |
| Xmax | 3 mm |
| Re | 4.91 Ω |
| Bl | 7.5 T·m |
| Mms | 38.3 g |
| Pe | 20 W |
| Sensitivity | 95 dB |
Alignment hint
| EBP | 48 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 823.2 L |
EBP < 50: favours a sealed (closed) 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 |
|---|---|---|---|---|---|---|---|---|
| Audio Nirvana SUPER 12AL | 37 +3.3 | 0.635 +0.01 | 236 +5.5 | 3 = | 94.6 -0.4 | close | + | |
| Cabasse 30BZ18 v1 | 36 +2.3 | 0.616 -0.01 | 243 +12.5 | 4 +1 | 94.8 -0.2 | close | + | |
| Audio Nirvana 12AL | 37 +3.3 | 0.65 +0.03 | 236 +5.5 | 3 = | 94.5 -0.5 | close | + | |
| Philips AD1256 vp A | 36.9 +3.2 | 0.59 -0.04 | 244.9 +14.4 | 4.3 +1.3 | 94.7 -0.3 | close | + | |
| Philips AD5200 vp A | 36.9 +3.2 | 0.59 -0.04 | 244.9 +14.4 | 4.3 +1.3 | 94.7 -0.3 | close | + | |
| PHY-HP HB30LB15 | 36 +2.3 | 0.567 -0.06 | 224 -6.5 | 3 = | 91.9 -3.1 | close | 16 Ω vs 8 Ω: amp load changes | + |
| PHY-HP HB30LB15SAG | 36 +2.3 | 0.567 -0.06 | 224 -6.5 | 3 = | 91.9 -3.1 | close | 16 Ω vs 8 Ω: amp load changes | + |
| PHY-HP KM30 | 36 +2.3 | 0.567 -0.06 | 224 -6.5 | 3 = | 91.9 -3.1 | close | 16 Ω vs 8 Ω: amp load changes | + |
| PHY-HP KM30SAG | 36 +2.3 | 0.567 -0.06 | 224 -6.5 | 3 = | 91.9 -3.1 | close | 16 Ω vs 8 Ω: amp load changes | + |
| Alpine 6002CX vp | 33.5 -0.2 | 0.548 -0.08 | 246.4 +15.9 | 4.1 +1.1 | 97 +2 | close | + |
Compare the closest 3 against the 412 vp1 →
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.