Front view — side by side at true scale
ADynaudio Contour 20iBCastle Windsor Duke
Click either cabinet to swap A ↔ B · Reference height: 470 mm (47.0 cm) · 1 mm = 1.19 px
| A | B | |
|---|---|---|
| Manufacturer | Dynaudio | Castle |
| Model | Dynaudio Contour 20i | Castle Windsor Duke |
| Height | 440 mm | 470 mm |
| Width | 215 mm | 280 mm |
| Depth | 396 mm | 346 mm |
| Weight | 14 kg | 13.5 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 28 mm tweeter (Esotar 2i soft dome with Hexis), 1× 180 mm mid-bass (MSP cone) | 1× 200 mm mid-bass (woven polypropylene), 1× 28 mm tweeter (micro-fibre dome) |
| Frequency — low | 39 Hz | 52 Hz |
| Frequency — high | 23000 Hz | 22000 Hz |
| Sensitivity | 86 dB | 90 dB |
| Impedance | 4 Ω | 8 Ω |
| Recommended amp | — | 30–150 W |
| MAP (USD) | $5,250 / pair | $5,760 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | dynaudio.com ↗ | castle.uk.com ↗ |
| Product page | Open product page ↗ | Open product page ↗ |
Larger value highlighted in green. For low-frequency extension, lower Hz = greater bass reach, so the deeper side is highlighted.