Davis 39RCA15 v2024
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 32.8 Hz |
| Qts | 0.346 |
| Qes | 0.376 |
| Qms | 4.28 |
| Vas | 99.5 L |
| Sd | 540 cm² |
| Xmax | 5.8 mm |
| Re | 5.42 Ω |
| Bl | 17 T·m |
| Mms | 96.7 g |
| Pe | 200 W |
| Sensitivity | 93.4 dB |
Alignment hint
| EBP | 87 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 31.3 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 |
|---|---|---|---|---|---|---|---|---|
| JBL GT 122 | 33 +0.2 | 0.35 = | 101 +1.5 | 5.1 -0.7 | 96.3 +2.9 | close | 4 Ω vs 8 Ω: amp load changes · 140 W vs 200 W: lower power handling · Xmax 5.1 mm < 5.8 mm: lower excursion-limited SPL | + |
| Focal 13 WX | 33.6 +0.8 | 0.366 +0.02 | 89 -10.5 | 6 +0.2 | 92.1 -1.3 | close | + | |
| Audio Dynamique 320/75 | 32 -0.8 | 0.341 = | 116 +16.5 | 5 -0.8 | 93.8 +0.4 | close | 150 W vs 200 W: lower power handling · Xmax 5 mm < 5.8 mm: lower excursion-limited SPL | + |
| Atohm D300P04 v2008 | 29.7 -3.1 | 0.352 +0.01 | 83.2 -16.3 | 6.4 +0.6 | 93.2 -0.2 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Atohm D300P04 v2019 | 29.7 -3.1 | 0.352 +0.01 | 83.2 -16.3 | 6.4 +0.6 | 93.2 -0.2 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Beyma 12BR70 vp jp | 33.7 +0.9 | 0.365 +0.02 | 104 +4.5 | 4.4 -1.4 | 93.1 -0.3 | close | 125 W vs 200 W: lower power handling · Xmax 4.4 mm < 5.8 mm: lower excursion-limited SPL | + |
| Beyma 12BR70 v2 | 35 +2.2 | 0.355 +0.01 | 100 +0.5 | 4.1 -1.7 | 93.4 = | close | 125 W vs 200 W: lower power handling · Xmax 4.1 mm < 5.8 mm: lower excursion-limited SPL | + |
| Kartesian WOM300_vDIY | 37 +4.2 | 0.362 +0.02 | 91.7 -7.8 | 6.4 +0.6 | 94.6 +1.2 | close | + | |
| SICA 12 SR 3 PL vp | 28.7 -4.1 | 0.317 -0.03 | 101.2 +1.7 | 7 +1.2 | 92.4 -1 | close | + | |
| Focal 33WX | 32.5 -0.3 | 0.349 = | 73.1 -26.4 | 7.1 +1.3 | 94.2 +0.8 | close | 4 Ω vs 8 Ω: amp load changes | + |
Compare the closest 3 against the 39RCA15 v2024 →
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.