Goodmans AXIOM 401
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 40.3 Hz |
| Qts | 0.344 |
| Qes | 0.447 |
| Qms | 1.49 |
| Vas | 181.2 L |
| Sd | 572 cm² |
| Xmax | 2.5 mm |
| Re | 6.73 Ω |
| Bl | 12.3 T·m |
| Mms | 39.5 g |
| Pe | 40 W |
| Sensitivity | 97 dB |
Alignment hint
| EBP | 90 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 56.2 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 |
|---|---|---|---|---|---|---|---|---|
| Beyma 12CX | 42 +1.7 | 0.34 = | 146.4 -34.8 | 2 -0.5 | 96.4 -0.6 | close | Xmax 2 mm < 2.5 mm: lower excursion-limited SPL | + |
| Davis 31TCA12 v2012 | 38 -2.3 | 0.333 -0.01 | 216 +34.8 | 6 +3.5 | 97.9 +0.9 | close | + | |
| Hyper Phase CM12 | 40 -0.3 | 0.372 +0.03 | 135 -46.2 | 3.5 +1 | 96.3 -0.7 | usable | + | |
| Ardan PRO W-31 | 36.4 -3.9 | 0.382 +0.04 | 170.6 -10.6 | 4 +1.5 | 95.3 -1.7 | usable | + | |
| Goodmans AXIOM 201 | 42.5 +2.2 | 0.421 +0.08 | 157.7 -23.5 | 2.5 = | 97.5 +0.5 | usable | 30 W vs 40 W: lower power handling | + |
| Beyma SM212 v2009 | 40 -0.3 | 0.373 +0.03 | 150 -31.2 | 8.2 +5.7 | 97.2 +0.2 | usable | + | |
| Supravox 285 GMF vp JTR 2 | 47.6 +7.3 | 0.335 -0.01 | 186 +4.8 | 4 +1.5 | 100.5 +3.5 | usable | + | |
| Davis 31TK12 | 38.1 -2.2 | 0.314 -0.03 | 216 +34.8 | 5 +2.5 | 98 +1 | usable | + | |
| Beyma 12XM | 42 +1.7 | 0.348 = | 125 -56.2 | 4 +1.5 | 97.9 +0.9 | usable | + | |
| B&C 12PH32 | 42 +1.7 | 0.28 -0.06 | 155 -26.2 | 3 +0.5 | 97.7 +0.7 | usable | + |
Compare the closest 3 against the AXIOM 401 →
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.