Davis 40RCADB vp
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 36 Hz |
| Qts | 0.422 |
| Qes | 0.45 |
| Qms | 6.85 |
| Vas | 187 L |
| Sd | 804 cm² |
| Xmax | 5 mm |
| Re | 4 Ω |
| Bl | 13.8 T·m |
| Mms | 94.7 g |
| Pe | 200 W |
| Sensitivity | 97.9 dB |
Alignment hint
| EBP | 80 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 103.4 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 |
|---|---|---|---|---|---|---|---|---|
| Cyrille Audio GM38F76P | 38.8 +2.8 | 0.419 = | 192.6 +5.6 | 6.6 +1.6 | 97.7 -0.2 | close | + | |
| Beyma 15CXA400Fe | 40 +4 | 0.419 = | 191 +4 | 6 +1 | 97.6 -0.3 | close | + | |
| Faital PRO 15FH520 | 36 = | 0.39 -0.03 | 186.5 -0.5 | 8.75 +3.75 | 98 +0.1 | close | + | |
| 18 Sound 15W750 | 40 +4 | 0.42 = | 182 -5 | 8 +3 | 98 +0.1 | close | 16 Ω vs 8 Ω: amp load changes | + |
| B&C 15 FCX 76 | 40 +4 | 0.445 +0.02 | 187 = | 6.5 +1.5 | 97.9 = | close | + | |
| Beyma 15CMV2 | 37 +1 | 0.391 -0.03 | 188 +1 | 6.5 +1.5 | 96.8 -1.1 | close | + | |
| Faital PRO 15FH520 v2025 | 36 = | 0.394 -0.03 | 186.5 -0.5 | 8.8 +3.8 | 96.8 -1.1 | close | + | |
| Selenium 15PW5 | 40 +4 | 0.4 -0.02 | 190 +3 | 5.7 +0.7 | 98.3 +0.4 | close | + | |
| Beyma SM115 | 42 +6 | 0.405 -0.02 | 185 -2 | 6.7 +1.7 | 98.2 +0.3 | close | + | |
| Peavey 1508-8 SPS BWX | 41.9 +5.9 | 0.438 +0.02 | 185.9 -1.1 | 4.7 -0.3 | 98.6 +0.7 | close | Xmax 4.7 mm < 5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 40RCADB vp →
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.