Fostex L 469
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 30 Hz |
| Qts | 0.271 |
| Qes | 0.28 |
| Qms | 8.2 |
| Vas | 259 L |
| Sd | 890 cm² |
| Xmax | 4 mm |
| Re | 6.8 Ω |
| Bl | 23.5 T·m |
| Mms | 120.7 g |
| Pe | 150 W |
| Sensitivity | 96.7 dB |
Alignment hint
| EBP | 107 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 44.6 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 |
|---|---|---|---|---|---|---|---|---|
| Fostex 15W-300 | 31 +1 | 0.26 -0.01 | 262 +3 | 4 = | 97.3 +0.6 | close | + | |
| Audax PR38S100VST vp M | 30.3 +0.3 | 0.285 +0.01 | 234 -25 | 4 = | 96.8 +0.1 | close | + | |
| JBL 1500 AL | 27.3 -2.7 | 0.274 = | 264.6 +5.6 | 5.5 +1.5 | 96.5 -0.2 | close | + | |
| Coral 15L100 | 29 -1 | 0.256 -0.02 | 265.7 +6.7 | 3.6 -0.4 | 97.6 +0.9 | close | 100 W vs 150 W: lower power handling · Xmax 3.6 mm < 4 mm: lower excursion-limited SPL | + |
| Eminence MAGNUM 15 HO | 33 +3 | 0.27 = | 241 -18 | 4.8 +0.8 | 97.9 +1.2 | close | + | |
| Gauss 4583A v2 | 31 +1 | 0.292 +0.02 | 283 +24 | 4 = | 97.9 +1.2 | close | + | |
| RCF L 15P200 v1983 | 29 -1 | 0.291 +0.02 | 280 +21 | 7.4 +3.4 | 96.6 -0.1 | close | + | |
| Mercuriale PTR 385 M0 | 33 +3 | 0.264 -0.01 | 252 -7 | 3.5 -0.5 | 98.2 +1.5 | close | Xmax 3.5 mm < 4 mm: lower excursion-limited SPL | + |
| Beyma 15 XT | 33 +3 | 0.289 +0.02 | 270 +11 | 5 +1 | 98 +1.3 | close | + | |
| Beyma SM115/K | 29 -1 | 0.249 -0.02 | 273 +14 | 8 +4 | 97.2 +0.5 | close | + |
Compare the closest 3 against the L 469 →
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.