Altec 604-8G
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 25.8 Hz |
| Qts | 0.252 |
| Qes | 0.26 |
| Qms | 8.3 |
| Vas | 624.4 L |
| Sd | 825.8 cm² |
| Xmax | 3.8 mm |
| Re | 7 Ω |
| Bl | 15.9 T·m |
| Mms | 58.3 g |
| Pe | 100 W |
| Sensitivity | 98.7 dB |
Alignment hint
| EBP | 99 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 90.8 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 |
|---|---|---|---|---|---|---|---|---|
| Altec 416-8C | 23.9 -1.9 | 0.249 = | 643.9 +19.5 | 3.8 = | 98.2 -0.5 | close | + | |
| Supravox 400 EXC Ag 13V | 25.3 -0.5 | 0.253 = | 555.6 -68.8 | 5 +1.2 | 98.7 = | close | + | |
| Altec 416-8B vp_BC | 24 -1.8 | 0.231 -0.02 | 648.5 +24.1 | 3.8 = | 98.6 -0.1 | close | + | |
| Supravox 400-2000 Argent vp | 24.3 -1.5 | 0.268 +0.02 | 605.5 -18.9 | 5 +1.2 | 98.3 -0.4 | close | + | |
| Fluxmag 1504 | 25.5 -0.3 | 0.26 +0.01 | 530 -94.4 | 4 +0.2 | 97 -1.7 | close | + | |
| Supravox 400 EXC Ag 14V | 25.4 -0.4 | 0.23 -0.02 | 554.5 -69.9 | 5 +1.2 | 99.1 +0.4 | close | + | |
| Altec 604-8H | 28.1 +2.3 | 0.269 +0.02 | 558.7 -65.7 | 3.8 = | 99.3 +0.6 | close | + | |
| Altec 416-8B | 24 -1.8 | 0.231 -0.02 | 648.5 +24.1 | 3.3 -0.5 | 98.6 -0.1 | close | 75 W vs 100 W: lower power handling · Xmax 3.3 mm < 3.8 mm: lower excursion-limited SPL | + |
| Altec 416-8A | 24.5 -1.3 | 0.287 +0.03 | 695 +70.6 | 3.8 = | 98.6 -0.1 | close | + | |
| Audio Dynamique AD380PM100 | 25.5 -0.3 | 0.26 +0.01 | 530 -94.4 | 5 +1.2 | 97 -1.7 | close | + |
Compare the closest 3 against the 604-8G →
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.