B&C 15 CX 40
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 44 Hz |
| Qts | 0.43 |
| Qes | 0.46 |
| Qms | 6.7 |
| Vas | 162 L |
| Sd | 855 cm² |
| Xmax | 4.5 mm |
| Re | 5.1 Ω |
| Bl | 15.9 T·m |
| Mms | 82.8 g |
| Pe | 400 W |
| Sensitivity | 98.7 dB |
Alignment hint
| EBP | 96 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 95.1 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 |
|---|---|---|---|---|---|---|---|---|
| Jensen BN15/350SB vp | 45 +1 | 0.461 +0.03 | 163 +1 | 5 +0.5 | 98.8 +0.1 | close | + | |
| Jensen BN15/350A vp | 45 +1 | 0.461 +0.03 | 163.1 +1.1 | 5.5 +1 | 98.8 +0.1 | close | + | |
| Fane SOVEREIGN 15-425 | 43 -1 | 0.417 -0.01 | 180.6 +18.6 | 4.6 +0.1 | 98.5 -0.2 | close | + | |
| SICA 15 CX 3 PL | 44.5 +0.5 | 0.407 -0.02 | 152.4 -9.6 | 5.5 +1 | 99 +0.3 | close | + | |
| Peavey 1508-8 SPS BWX | 41.9 -2.1 | 0.438 +0.01 | 185.9 +23.9 | 4.7 +0.2 | 98.6 -0.1 | close | + | |
| RCF L 15P530 | 45 +1 | 0.478 +0.05 | 160 -2 | 6.2 +1.7 | 98.5 -0.2 | close | + | |
| Eminence KAPPALITE 3015 LF v2018 | 44 = | 0.456 +0.03 | 150.9 -11.1 | 6.6 +2.1 | 97.9 -0.8 | close | + | |
| Eminence KAPPALITE 3015 LF v2014 | 43.7 -0.3 | 0.456 +0.03 | 150.9 -11.1 | 6.6 +2.1 | 97.8 -0.9 | close | + | |
| Eminence KAPPALITE 3015 LF v2016 | 43.7 -0.3 | 0.456 +0.03 | 150.9 -11.1 | 6.6 +2.1 | 97.8 -0.9 | close | + | |
| Peavey 1505-8 DT | 46.5 +2.5 | 0.389 -0.04 | 164.3 +2.3 | 5.1 +0.6 | 99.5 +0.8 | close | + |
Compare the closest 3 against the 15 CX 40 →
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.