Conrad CPA15-400
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 34.3 Hz |
| Qts | 0.186 |
| Qes | 0.191 |
| Qms | 7.445 |
| Vas | 223 L |
| Sd | 835 cm² |
| Xmax | 4 mm |
| Re | 5.5 Ω |
| Bl | 24.2 T·m |
| Mms | 94.4 g |
| Pe | 400 W |
| Sensitivity | 100.3 dB |
Alignment hint
| EBP | 180 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 16.6 L |
EBP > 100: favours a ported (bass-reflex) 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 |
|---|---|---|---|---|---|---|---|---|
| Conrad CPA15-1000 | 31.3 -3 | 0.193 +0.01 | 221.7 -1.3 | 4 = | 98.9 -1.4 | close | + | |
| Beyma 15MI100 vp francis | 38 +3.7 | 0.175 -0.01 | 217 -6 | 4.5 +0.5 | 101.2 +0.9 | close | + | |
| Conrad CPA15-300 v2018 | 33.3 -1 | 0.196 +0.01 | 193.6 -29.4 | 4.6 +0.6 | 99.2 -1.1 | close | 300 W vs 400 W: lower power handling | + |
| Electro-Voice EVX-155 | 35.4 +1.1 | 0.212 +0.03 | 220 -3 | 6.4 +2.4 | 100.5 +0.2 | close | + | |
| Oberton 15MB600 | 32.4 -1.9 | 0.17 -0.02 | 204 -19 | 5.5 +1.5 | 99.9 -0.4 | close | + | |
| Beyma 15P80/ND v2015 | 33 -1.3 | 0.178 -0.01 | 250 +27 | 7.8 +3.8 | 100.9 +0.6 | close | + | |
| Beyma 15P80/ND | 35 +0.7 | 0.214 +0.03 | 217 -6 | 7.9 +3.9 | 100.1 -0.2 | close | + | |
| RCF L 15/544K | 35 +0.7 | 0.233 +0.05 | 227 +4 | 4 = | 98.9 -1.4 | close | + | |
| Radian 2216 neo | 36.8 +2.5 | 0.168 -0.02 | 184 -39 | 5.1 +1.1 | 100.6 +0.3 | close | + | |
| JBL E140 | 32 -2.3 | 0.183 = | 297.3 +74.3 | 3.6 -0.4 | 100.7 +0.4 | close | 200 W vs 400 W: lower power handling · Xmax 3.6 mm < 4 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the CPA15-400 →
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.