PHL Audio 7081
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 34 Hz |
| Qts | 0.409 |
| Qes | 0.44 |
| Qms | 5.81 |
| Vas | 267.6 L |
| Sd | 1282 cm² |
| Xmax | 7.5 mm |
| Re | 5.6 Ω |
| Bl | 22.6 T·m |
| Mms | 188.7 g |
| Pe | 750 W |
| Sensitivity | 97.3 dB |
Alignment hint
| EBP | 77 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 134.5 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 |
|---|---|---|---|---|---|---|---|---|
| Beyma 18LEX1000/Nd | 34 = | 0.391 -0.02 | 260 -7.6 | 9.4 +1.9 | 97.8 +0.5 | close | + | |
| PHL Audio 7030 | 34 = | 0.378 -0.03 | 260 -7.6 | 7.8 +0.3 | 97.6 +0.3 | close | + | |
| Beyma 18G550 v2018 | 33 -1 | 0.396 -0.01 | 290 +22.4 | 9 +1.5 | 97.5 +0.2 | close | + | |
| Beyma 18LEX1000Nd | 34 = | 0.39 -0.02 | 260 -7.6 | 11 +3.5 | 98 +0.7 | close | + | |
| Fane SOVEREIGN PRO 18-800 P | 33 -1 | 0.386 -0.02 | 258 -9.6 | 7.5 = | 96.4 -0.9 | close | + | |
| Turbosound TS-18SW700/8A | 35 +1 | 0.433 +0.02 | 250 -17.6 | 7.5 = | 97.7 +0.4 | close | + | |
| Beyma 18G550/S-8 | 33 -1 | 0.396 -0.01 | 290 +22.4 | 9.3 +1.8 | 97.5 +0.2 | close | + | |
| PHL Audio 7090 | 36 +2 | 0.386 -0.02 | 260 -7.6 | 8 +0.5 | 98.2 +0.9 | close | + | |
| Beyma 118Nd/W | 36 +2 | 0.398 -0.01 | 249 -18.6 | 7 -0.5 | 97.7 +0.4 | close | Xmax 7 mm < 7.5 mm: lower excursion-limited SPL | + |
| Faital PRO 18HP1010 | 35 +1 | 0.4 -0.01 | 240.1 -27.5 | 9.75 +2.25 | 98 +0.7 | close | + |
Compare the closest 3 against the 7081 →
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.