Atohm D300P04 v2008
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 29.7 Hz |
| Qts | 0.352 |
| Qes | 0.38 |
| Qms | 4.87 |
| Vas | 83.2 L |
| Sd | 472 cm² |
| Xmax | 6.4 mm |
| Re | 3.5 Ω |
| Bl | 13.6 T·m |
| Mms | 107.8 g |
| Pe | 200 W |
| Sensitivity | 93.2 dB |
Alignment hint
| EBP | 78 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 27.4 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 |
|---|---|---|---|---|---|---|---|---|
| Atohm D300P04 v2019 | 29.7 = | 0.352 = | 83.2 = | 6.4 = | 93.2 = | close | + | |
| Auditor RIP 300P | 28.9 -0.8 | 0.35 = | 79.3 -3.9 | 8.8 +2.4 | 92.6 -0.6 | close | + | |
| AER SB 12 | 29 -0.7 | 0.349 = | 82 -1.2 | 7.1 +0.7 | 90.6 -2.6 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Focal 13W 8711 | 28.8 -0.9 | 0.328 -0.02 | 87.1 +3.9 | 7.9 +1.5 | 93.4 +0.2 | close | + | |
| Focal 13W 8711 vp | 28.8 -0.9 | 0.328 -0.02 | 87.1 +3.9 | 7.9 +1.5 | 93.4 +0.2 | close | + | |
| Magnat XTC300 | 30 +0.3 | 0.317 -0.03 | 81 -2.2 | 6.9 +0.5 | 93.8 +0.6 | close | + | |
| hertz Hertz Audio ES300 | 28 -1.7 | 0.382 +0.03 | 89.4 +6.2 | 7.7 +1.3 | 93 -0.2 | close | + | |
| Focal 33WX | 32.5 +2.8 | 0.349 = | 73.1 -10.1 | 7.1 +0.7 | 94.2 +1 | close | + | |
| Focal 33WX2 | 32.5 +2.8 | 0.349 = | 73.1 -10.1 | 7.1 +0.7 | 94.2 +1 | close | + | |
| Hertz Audio ES 300 | 28 -1.7 | 0.38 +0.03 | 89.4 +6.2 | 9 +2.6 | 94 +0.8 | close | + |
Compare the closest 3 against the D300P04 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.