Audio Nirvana CLASSIC 12 ALNICO
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 37 Hz |
| Qts | 0.783 |
| Qes | 0.94 |
| Qms | 4.7 |
| Vas | 232 L |
| Sd | 530 cm² |
| Xmax | 0.9 mm |
| Re | 7.2 Ω |
| Bl | 7.5 T·m |
| Mms | 31.4 g |
| Pe | 30 W |
| Sensitivity | 93.4 dB |
Alignment hint
| EBP | 39 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | Qts too high |
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 12AL | 37 = | 0.65 -0.13 | 236 +4 | 3 +2.1 | 94.5 +1.1 | usable | + | |
| Audio Nirvana SUPER 12AL | 37 = | 0.635 -0.15 | 236 +4 | 3 +2.1 | 94.6 +1.2 | usable | + | |
| Audio Nirvana SUPER 12 FERRITE | 37.4 +0.4 | 0.558 -0.22 | 230.5 -1.5 | 1 +0.1 | 95.4 +2 | usable | + | |
| Altec 412 vp1 | 33.7 -3.3 | 0.625 -0.16 | 230.5 -1.5 | 3 +2.1 | 95 +1.6 | usable | 20 W vs 30 W: lower power handling | + |
| EMS LB12EX_06V | 34 -3 | 0.722 -0.06 | 200 -32 | 3 +2.1 | 90.2 -3.2 | usable | 16 Ω vs 8 Ω: amp load changes | + |
| Cabasse 30BZ18 v1 | 36 -1 | 0.616 -0.17 | 243 +11 | 4 +3.1 | 94.8 +1.4 | usable | + | |
| Cabasse 30BZ18 v2 | 38.5 +1.5 | 0.747 -0.04 | 154.7 -77.3 | 4 +3.1 | 92.8 -0.6 | usable | + | |
| Philips AD1256 vp A | 36.9 -0.1 | 0.59 -0.19 | 244.9 +12.9 | 4.3 +3.4 | 94.7 +1.3 | usable | + | |
| Philips AD5200 vp A | 36.9 -0.1 | 0.59 -0.19 | 244.9 +12.9 | 4.3 +3.4 | 94.7 +1.3 | usable | + | |
| PHY-HP HB30LB15 | 36 -1 | 0.567 -0.22 | 224 -8 | 3 +2.1 | 91.9 -1.5 | usable | 16 Ω vs 8 Ω: amp load changes | + |
Compare the closest 3 against the CLASSIC 12 ALNICO →
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.