Altec 420A vp Daniel 1
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 23.6 Hz |
| Qts | 0.555 |
| Qes | 0.684 |
| Qms | 2.939 |
| Vas | 509.1 L |
| Sd | 855.3 cm² |
| Xmax | 2.8 mm |
| Re | 4.85 Ω |
| Bl | 9.8 T·m |
| Mms | 92 g |
| Pe | 25 W |
| Sensitivity | 94 dB |
Alignment hint
| EBP | 35 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 816.9 L |
EBP < 50: favours a sealed (closed) 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 |
|---|---|---|---|---|---|---|---|---|
| Stromberg-Carlson 15 PO | 24.6 +1 | 0.563 +0.01 | 461.6 -47.5 | 5 +2.2 | 91.8 -2.2 | close | 16 Ω vs 8 Ω: amp load changes | + |
| Supravox 400-2000EXC_07V | 25 +1.4 | 0.599 +0.04 | 444 -65.1 | 5 +2.2 | 93.3 -0.7 | close | + | |
| Altec 416-8 Heathkit | 26.9 +3.3 | 0.466 -0.09 | 498 -11.1 | 3.8 +1 | 94.6 +0.6 | usable | + | |
| Europsonic HPC38/100 | 24.9 +1.3 | 0.66 +0.1 | 425.4 -83.7 | 4.3 +1.5 | 92 -2 | usable | + | |
| Altec 415C | 24.6 +1 | 0.526 -0.03 | 749.2 +240.1 | 3 +0.2 | 97.4 +3.4 | usable | + | |
| Supravox 400-2000EXC_09V | 25 +1.4 | 0.431 -0.12 | 440 -69.1 | 5 +2.2 | 94.8 +0.8 | usable | + | |
| Altec 420A vp Daniel 3 | 26.9 +3.3 | 0.694 +0.14 | 393.7 -115.4 | 2.8 = | 93.9 -0.1 | usable | + | |
| Europsonic TS38/300 | 30 +6.4 | 0.553 = | 608.5 +99.4 | 4.5 +1.7 | 97.5 +3.5 | usable | + | |
| MTX Audio T3154 | 22.7 -0.9 | 0.561 +0.01 | 315.9 -193.2 | 9.4 +6.6 | 93.8 -0.2 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| AE Speakers IB15AU-4 | 20.4 -3.2 | 0.619 +0.06 | 387 -122.1 | 9 +6.2 | 93.5 -0.5 | usable | 4 Ω vs 8 Ω: amp load changes | + |
Compare the closest 3 against the 420A vp Daniel 1 →
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.