Davis 40RCADF
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 27 Hz |
| Qts | 0.282 |
| Qes | 0.29 |
| Qms | 10.5 |
| Vas | 350 L |
| Sd | 804 cm² |
| Xmax | 5 mm |
| Re | 5.05 Ω |
| Bl | 16.3 T·m |
| Mms | 90 g |
| Pe | 200 W |
| Sensitivity | 97.7 dB |
Alignment hint
| EBP | 93 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 66.2 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 |
|---|---|---|---|---|---|---|---|---|
| Davis 40RCA15 | 27 = | 0.282 = | 350 = | 5 = | 97.7 = | close | + | |
| Davis 40RCA15DF | 27 = | 0.282 = | 350 = | 5 = | 97.7 = | close | + | |
| Kenwood TRIO | 27 = | 0.27 -0.01 | 350 = | 5 = | 97.4 -0.3 | close | + | |
| Usher Audio 15HM Studio | 27 = | 0.28 = | 385 +35 | 5.9 +0.9 | 98 +0.3 | close | 150 W vs 200 W: lower power handling | + |
| Altec 4156-8A | 29 +2 | 0.28 = | 353.7 +3.7 | 4.3 -0.7 | 98 +0.3 | close | Xmax 4.3 mm < 5 mm: lower excursion-limited SPL | + |
| Beyma 15k200 | 27 = | 0.262 -0.02 | 345 -5 | 7.5 +2.5 | 97 -0.7 | close | + | |
| Rockford Fosgate PWR-415 | 24 -3 | 0.283 = | 334 -16 | 6.2 +1.2 | 97.4 -0.3 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Beyma SM-115/K | 27 = | 0.253 -0.03 | 345 -5 | 8 +3 | 97.5 -0.2 | close | + | |
| Monacor SP-385PAX | 30 +3 | 0.285 = | 365 +15 | 4.5 -0.5 | 98 +0.3 | close | Xmax 4.5 mm < 5 mm: lower excursion-limited SPL | + |
| Usher Audio 15 HM | 28.7 +1.7 | 0.299 +0.02 | 314.9 -35.1 | 5.5 +0.5 | 97.6 -0.1 | close | 150 W vs 200 W: lower power handling | + |
Compare the closest 3 against the 40RCADF →
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.