Great Plains Audio 416-8B GPA
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 22.9 Hz |
| Qts | 0.323 |
| Qes | 0.336 |
| Qms | 8.188 |
| Vas | 517.7 L |
| Sd | 823.7 cm² |
| Xmax | 4 mm |
| Re | 7.27 Ω |
| Bl | 16.6 T·m |
| Mms | 88.9 g |
| Pe | 150 W |
| Sensitivity | 95.1 dB |
Alignment hint
| EBP | 68 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 136.5 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 |
|---|---|---|---|---|---|---|---|---|
| Monacor SP-380P | 23 +0.1 | 0.27 -0.05 | 505 -12.7 | 4 = | 96.4 +1.3 | close | + | |
| Supravox 400 GMF | 26 +3.1 | 0.319 = | 489 -28.7 | 5 +1 | 97 +1.9 | close | + | |
| Altec 927-8A | 22.9 = | 0.278 -0.04 | 496.1 -21.6 | 8.3 +4.3 | 95.1 = | close | + | |
| AE Speakers TD15S | 22.8 -0.1 | 0.371 +0.05 | 467 -50.7 | 7 +3 | 95.1 = | close | + | |
| Focal AUDIOM 15AX | 22.8 -0.1 | 0.311 -0.01 | 635 +117.3 | 6 +2 | 96.9 +1.8 | close | + | |
| Supravox 400-2000EXC_11V | 25 +2.1 | 0.308 -0.02 | 433 -84.7 | 5 +1 | 96.2 +1.1 | close | + | |
| Davis 39GCA15 | 23.6 +0.7 | 0.33 +0.01 | 402 -115.7 | 7.5 +3.5 | 95.6 +0.5 | close | + | |
| AE Speakers TD15X 8 Ohms | 23.2 +0.3 | 0.287 -0.04 | 467 -50.7 | 7 +3 | 96.3 +1.2 | close | + | |
| Altec 3154 | 25 +2.1 | 0.322 = | 393.6 -124.1 | 6.4 +2.4 | 95 -0.1 | close | + | |
| Great Plains Audio 3154 GPA | 25 +2.1 | 0.322 = | 393.6 -124.1 | 6.4 +2.4 | 95 -0.1 | close | + |
Compare the closest 3 against the 416-8B GPA →
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.