Front view — side by side at true scale
ACastle Windsor DukeBHarbeth Monitor 30.3 XD2
Click either cabinet to swap A ↔ B · Reference height: 470 mm (47.0 cm) · 1 mm = 1.19 px
| A | B | |
|---|---|---|
| Manufacturer | Castle | Harbeth |
| Model | Castle Windsor Duke | Harbeth Monitor 30.3 XD2 |
| Height | 470 mm | 460 mm |
| Width | 280 mm | 277 mm |
| Depth | 346 mm | 275 mm |
| Weight | 13.5 kg | 11.6 kg |
| Enclosure | bass-reflex-rear | sealed |
| Drivers | 1× 200 mm mid-bass (woven polypropylene), 1× 28 mm tweeter (micro-fibre dome) | 1× 25 mm tweeter (ferrofluid-cooled dome), 1× 200 mm mid-bass (RADIAL polymer cone) |
| Frequency — low | 52 Hz | 50 Hz |
| Frequency — high | 22000 Hz | 20000 Hz |
| Sensitivity | 90 dB | 85 dB |
| Impedance | 8 Ω | 6 Ω |
| Recommended amp | 30–150 W | — |
| MAP (USD) | $5,760 / pair | $6,290 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | castle.uk.com ↗ | harbeth.co.uk ↗ |
| 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.