SEAS 25F-EWX 4
Thiele-Small parameters
| Nominal size | 10" |
|---|---|
| Impedance | 4 Ω |
| Fs | 25 Hz |
| Qts | 0.217 |
| Qes | 0.23 |
| Qms | 4 |
| Vas | 175 L |
| Sd | 350 cm² |
| Xmax | 4 mm |
| Re | 3.2 Ω |
| Bl | 9.3 T·m |
| Mms | 39.8 g |
| Pe | 60 W |
| Sensitivity | 96.7 dB |
Alignment hint
| EBP | 109 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 18.2 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 |
|---|---|---|---|---|---|---|---|---|
| SEAS 25F-EWX 8 | 26 +1 | 0.226 +0.01 | 175 = | 4 = | 94.5 -2.2 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Tannoy 250/HF/III-L-Z/8/U | 26 +1 | 0.233 +0.02 | 200 +25 | 4 = | 94.7 -2 | close | 8 Ω vs 4 Ω: amp load changes · 30 W vs 60 W: lower power handling | + |
| Focal 10C01-T | 29 +4 | 0.237 +0.02 | 175.6 +0.6 | 5.5 +1.5 | 95.4 -1.3 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Focal 10C01 v2 | 29 +4 | 0.239 +0.02 | 176.6 +1.6 | 5.5 +1.5 | 95.4 -1.3 | close | 8 Ω vs 4 Ω: amp load changes | + |
| SEAS 25F-EWX | 26 +1 | 0.23 +0.01 | 175 = | 8 +4 | 92.9 -3.8 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Audax HIF24HSMC-4CA12 v2 | 27 +2 | 0.243 +0.03 | 179.6 +4.6 | 5 +1 | 94 -2.7 | close | 8 Ω vs 4 Ω: amp load changes · 40 W vs 60 W: lower power handling | + |
| Audax HD24S45TSM-C-2CA14 | 27 +2 | 0.258 +0.04 | 178 +3 | 4 = | 94 -2.7 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| Audax PR240M6 v2014 | 25 = | 0.26 +0.04 | 207 +32 | 4 = | 94.1 -2.6 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| Focal 10K 617 | 25.1 +0.1 | 0.242 +0.02 | 238 +63 | 6 +2 | 95.8 -0.9 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| Fostex FW 250 | 23 -2 | 0.225 +0.01 | 150 -25 | 4.5 +0.5 | 91.8 -4.9 | usable | 8 Ω vs 4 Ω: amp load changes | + |
Compare the closest 3 against the 25F-EWX 4 →
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.