Altec 515-8G
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 37 Hz |
| Qts | 0.269 |
| Qes | 0.284 |
| Qms | 5 |
| Vas | 351.1 L |
| Sd | 848.4 cm² |
| Xmax | 3.5 mm |
| Re | 6.2 Ω |
| Bl | 16.4 T·m |
| Mms | 53.2 g |
| Pe | 75 W |
| Sensitivity | 101.1 dB |
Alignment hint
| EBP | 130 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 59.4 L |
EBP > 100: favours a ported (bass-reflex) 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 |
|---|---|---|---|---|---|---|---|---|
| Great Plains Audio 515-8G GPA | 37 = | 0.269 = | 351.1 = | 3.5 = | 101.1 = | close | + | |
| Iconic Speakers 165-8G | 37 = | 0.265 = | 363.7 +12.6 | 3.5 = | 101.3 +0.2 | close | + | |
| Benett 15.200 Z/N | 32.9 -4.1 | 0.265 = | 344 -7.1 | 5 +1.5 | 100.1 -1 | close | + | |
| JBL K130 | 40 +3 | 0.253 -0.02 | 297.3 -53.8 | 3.6 +0.1 | 101.5 +0.4 | close | + | |
| Great Plains Audio 604-8H III | 33.7 -3.3 | 0.254 -0.02 | 329.9 -21.2 | 3.8 +0.3 | 99.3 -1.8 | close | + | |
| Great Plains Audio 604-H III | 33.7 -3.3 | 0.254 -0.02 | 329.9 -21.2 | 3.8 +0.3 | 99.3 -1.8 | close | + | |
| Davis 39RPA15 | 31 -6 | 0.27 = | 340 -11.1 | 4 +0.5 | 99.3 -1.8 | close | + | |
| Beyma SM-115 | 35 -2 | 0.282 +0.01 | 331 -20.1 | 6.7 +3.2 | 99.7 -1.4 | close | + | |
| Supravox 400 GMF PRO | 32 -5 | 0.263 -0.01 | 370 +18.9 | 4.8 +1.3 | 99.4 -1.7 | close | + | |
| Sphynx SP-W15-SONO | 38 +1 | 0.331 +0.06 | 376 +24.9 | 4 +0.5 | 100.9 -0.2 | close | + |
Compare the closest 3 against the 515-8G →
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.