Altec 927-8A
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 22.9 Hz |
| Qts | 0.278 |
| Qes | 0.32 |
| Qms | 2.13 |
| Vas | 496.1 L |
| Sd | 847.9 cm² |
| Xmax | 8.3 mm |
| Re | 7.3 Ω |
| Bl | 17.9 T·m |
| Mms | 98.1 g |
| Pe | 200 W |
| Sensitivity | 95.1 dB |
Alignment hint
| EBP | 72 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 90.7 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 |
|---|---|---|---|---|---|---|---|---|
| Audiotechnology 15F1022510KAP | 22 -0.9 | 0.288 +0.01 | 410 -86.1 | 8.5 +0.2 | 94.9 -0.2 | close | + | |
| AE Speakers TD15X 8 Ohms | 23.2 +0.3 | 0.287 +0.01 | 467 -29.1 | 7 -1.3 | 96.3 +1.2 | close | Xmax 7 mm < 8.3 mm: lower excursion-limited SPL | + |
| Monacor SPH-390TC 8 Ohms | 22 -0.9 | 0.272 -0.01 | 531 +34.9 | 7 -1.3 | 96.1 +1 | close | 150 W vs 200 W: lower power handling · Xmax 7 mm < 8.3 mm: lower excursion-limited SPL | + |
| Audiotechnology FLEXUNIT 15 F 102 25 10 KAP | 22 -0.9 | 0.29 +0.01 | 410 -86.1 | 8.6 +0.3 | 93.5 -1.6 | close | + | |
| JBL 2235H | 20 -2.9 | 0.252 -0.03 | 458.7 -37.4 | 8.4 +0.1 | 94.4 -0.7 | close | + | |
| AE Speakers TD15H | 21 -1.9 | 0.254 -0.02 | 467 -29.1 | 7 -1.3 | 94.9 -0.2 | close | Xmax 7 mm < 8.3 mm: lower excursion-limited SPL | + |
| AE Speakers TD15H-8 | 21 -1.9 | 0.254 -0.02 | 467 -29.1 | 7 -1.3 | 94.9 -0.2 | close | Xmax 7 mm < 8.3 mm: lower excursion-limited SPL | + |
| Focal 38VX | 22.3 -0.6 | 0.279 = | 347 -149.1 | 8.2 -0.1 | 96.9 +1.8 | close | 4 Ω vs 8 Ω: amp load changes · Xmax 8.2 mm < 8.3 mm: lower excursion-limited SPL | + |
| Supravox 400-2000 | 23 +0.1 | 0.272 -0.01 | 450 -46.1 | 5 -3.3 | 95.8 +0.7 | usable | 120 W vs 200 W: lower power handling · Xmax 5 mm < 8.3 mm: lower excursion-limited SPL | + |
| Visaton WS40NG | 25 +2.1 | 0.252 -0.03 | 500 +3.9 | 6.5 -1.8 | 97.1 +2 | usable | Xmax 6.5 mm < 8.3 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 927-8A →
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.