Audio Nirvana CLASSIC 12 FERRITE
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 31 Hz |
| Qts | 0.345 |
| Qes | 0.37 |
| Qms | 5.09 |
| Vas | 309.8 L |
| Sd | 580 cm² |
| Xmax | 0.9 mm |
| Re | 7.2 Ω |
| Bl | 12.3 T·m |
| Mms | 40.1 g |
| Pe | 30 W |
| Sensitivity | 96.4 dB |
Alignment hint
| EBP | 84 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 96.8 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 |
|---|---|---|---|---|---|---|---|---|
| Audio Nirvana CLASSIC 12 | 31 = | 0.345 = | 309.8 = | 0.9 = | 96.4 = | close | + | |
| Monacor SP-300P | 30 -1 | 0.305 -0.04 | 266 -43.8 | 2.5 +1.6 | 95.8 -0.6 | usable | + | |
| SEAS 33F-WB | 27 -4 | 0.348 = | 280 -29.8 | 5 +4.1 | 94.6 -1.8 | usable | + | |
| Focal AUDIOM 12AX | 30.7 -0.3 | 0.329 -0.02 | 226 -83.8 | 4.5 +3.6 | 95.9 -0.5 | usable | + | |
| Philips AD5201-8 | 24.4 -6.6 | 0.314 -0.03 | 318.6 +8.8 | 2 +1.1 | 94.4 -2 | usable | 20 W vs 30 W: lower power handling | + |
| Cabasse 30BZ24 vp oriu1 | 30.3 -0.7 | 0.394 +0.05 | 363 +53.2 | 4 +3.1 | 94.6 -1.8 | usable | 16 Ω vs 8 Ω: amp load changes | + |
| Sonido SWR-300 | 35 +4 | 0.378 +0.03 | 215 -94.8 | 1.6 +0.7 | 95.7 -0.7 | usable | 15 W vs 30 W: lower power handling | + |
| Davis 31TCA12 vp rc | 32.5 +1.5 | 0.314 -0.03 | 222 -87.8 | 6 +5.1 | 96.2 -0.2 | usable | + | |
| Davis 31TCA12W | 27 -4 | 0.283 -0.06 | 335 +25.2 | 6 +5.1 | 96.2 -0.2 | usable | + | |
| Klipsch K24K | 24 -7 | 0.323 -0.02 | 281 -28.8 | 4 +3.1 | 94.3 -2.1 | usable | + |
Compare the closest 3 against the CLASSIC 12 FERRITE →
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.