Magnat AD 300 Séries II
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 30 Hz |
| Qts | 0.411 |
| Qes | 0.46 |
| Qms | 3.9 |
| Vas | 72 L |
| Sd | 500 cm² |
| Xmax | 7.3 mm |
| Re | 2.9 Ω |
| Bl | 12.8 T·m |
| Mms | 137 g |
| Pe | 300 W |
| Sensitivity | 92.6 dB |
Alignment hint
| EBP | 65 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 36.7 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 |
|---|---|---|---|---|---|---|---|---|
| Magnat AD300 | 30 = | 0.411 = | 72 = | 7.3 = | 92.8 +0.2 | close | + | |
| Polk Audio DB1240 | 30 = | 0.44 +0.03 | 71.85 -0.15 | 7.5 +0.2 | 88.1 -4.5 | close | + | |
| Focal P30DB | 29.4 -0.6 | 0.427 +0.02 | 56.8 -15.2 | 7.7 +0.4 | 93.7 +1.1 | close | 2 Ω vs 4 Ω: amp load changes | + |
| Infinity 1230W | 27.3 -2.7 | 0.437 +0.03 | 78.5 +6.5 | 7.9 +0.6 | 91 -1.6 | close | + | |
| Pioneer TS-W306C | 32.6 +2.6 | 0.414 = | 55.6 -16.4 | 8.1 +0.8 | 92.8 +0.2 | close | + | |
| Aura Sound NS12-794-4A | 27 -3 | 0.423 +0.01 | 78 +6 | 9.9 +2.6 | 90.9 -1.7 | close | + | |
| Auditor RIP 300P | 28.9 -1.1 | 0.35 -0.06 | 79.3 +7.3 | 8.8 +1.5 | 92.6 = | close | + | |
| Alpine SWR-1241D | 28 -2 | 0.427 +0.02 | 58 -14 | 6.9 -0.4 | 93 +0.4 | close | 2 Ω vs 4 Ω: amp load changes · Xmax 6.9 mm < 7.3 mm: lower excursion-limited SPL | + |
| Powerbass M-124 | 29.15 -0.85 | 0.41 = | 77.3 +5.3 | 9.5 +2.2 | 88 -4.6 | close | + | |
| JBL GTO 1214D | 28.3 -1.7 | 0.488 +0.08 | 66 -6 | 7.3 = | 92.9 +0.3 | close | 2 Ω vs 4 Ω: amp load changes | + |
Compare the closest 3 against the AD 300 Séries II →
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.