Supravox 285 GMF v2008
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 47 Hz |
| Qts | 0.372 |
| Qes | 0.39 |
| Qms | 8 |
| Vas | 150 L |
| Sd | 471 cm² |
| Xmax | 4 mm |
| Re | 6.5 Ω |
| Bl | 10.8 T·m |
| Mms | 23.8 g |
| Pe | 70 W |
| Sensitivity | 98.9 dB |
Alignment hint
| EBP | 121 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 57.4 L |
EBP > 100: favours a ported (bass-reflex) 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 |
|---|---|---|---|---|---|---|---|---|
| Supravox 285 GMF v2012 | 47 = | 0.372 = | 150 = | 4 = | 98.9 = | close | + | |
| Eminence DELTA PRO 12-450A | 44 -3 | 0.371 = | 141.7 -8.3 | 5.2 +1.2 | 98.9 = | close | + | |
| 18 Sound 12W501 | 46 -1 | 0.369 = | 123 -27 | 4 = | 98.7 -0.2 | close | + | |
| 18 Sound 12W500 | 46 -1 | 0.36 -0.01 | 123 -27 | 4 = | 99.5 +0.6 | close | + | |
| Supravox 285 GMF v2019 | 47.8 +0.8 | 0.327 -0.04 | 157 +7 | 4 = | 99.9 +1 | close | + | |
| Supravox 285 GMF vp4 | 50.1 +3.1 | 0.335 -0.04 | 151 +1 | 3.9 -0.1 | 100.2 +1.3 | close | Xmax 3.9 mm < 4 mm: lower excursion-limited SPL | + |
| Supravox 285-2000EXC_08V | 53 +6 | 0.393 +0.02 | 154 +4 | 4 = | 100.4 +1.5 | close | + | |
| Supravox 285 GMF vp8 | 52.2 +5.2 | 0.349 -0.02 | 152.5 +2.5 | 4 = | 100.7 +1.8 | close | + | |
| Eminence DELTALITE II 2512 | 44 -3 | 0.406 +0.03 | 134.9 -15.1 | 4.9 +0.9 | 97.9 -1 | close | + | |
| Eminence DELTALITE II 2512 v2014 | 44 -3 | 0.406 +0.03 | 134.9 -15.1 | 4.9 +0.9 | 97.9 -1 | close | + |
Compare the closest 3 against the 285 GMF v2008 →
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.