Fertin Acoustics 38EX-7.5 V
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 20 Hz |
| Qts | 0.249 |
| Qes | 0.27 |
| Qms | 3.17 |
| Vas | 935 L |
| Sd | 830 cm² |
| Xmax | 3 mm |
| Re | 5 Ω |
| Bl | 12.3 T·m |
| Mms | 65.4 g |
| Pe | 80 W |
| Sensitivity | 98.4 dB |
Alignment hint
| EBP | 74 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 132.4 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 |
|---|---|---|---|---|---|---|---|---|
| Altec 416-8B vp2 | 19.7 -0.3 | 0.24 -0.01 | 936 +1 | 3.8 +0.8 | 96.8 -1.6 | close | + | |
| Altec 416-8B vp3_BC | 19.7 -0.3 | 0.24 -0.01 | 936.3 +1.3 | 3.8 +0.8 | 96.8 -1.6 | close | + | |
| Great Plains Audio 416-8B v2016 | 21.5 +1.5 | 0.271 +0.02 | 787 -148 | 4 +1 | 97.2 -1.2 | close | + | |
| Focal AUDIOM 15A | 21.5 +1.5 | 0.223 -0.03 | 832 -103 | 6 +3 | 98.8 +0.4 | usable | + | |
| EMS B15EX-07.5V | 22 +2 | 0.228 -0.02 | 791 -144 | 7 +4 | 98.4 = | usable | + | |
| JBL 2215H | 20 = | 0.212 -0.04 | 736.2 -198.8 | 4.1 +1.1 | 97.7 -0.7 | usable | + | |
| Audax PR380M0 | 20 = | 0.22 -0.03 | 710 -225 | 3.8 +0.8 | 97.1 -1.3 | usable | + | |
| Supravox 400-2000 vp2 | 21.1 +1.1 | 0.261 +0.01 | 715 -220 | 5 +2 | 96.8 -1.6 | usable | + | |
| Supravox 400-2000 vp moy1 et 2 | 21.1 +1.1 | 0.273 +0.02 | 748 -187 | 5 +2 | 96.8 -1.6 | usable | + | |
| EMS B15EX | 22 +2 | 0.223 -0.03 | 791 -144 | 7 +4 | 98.5 +0.1 | usable | + |
Compare the closest 3 against the 38EX-7.5 V →
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.