TrueScaleCompare speakers at true scale.
TrueSpecsCompare technical specifications (up to 4 speakers).HiFi LadderBrowse every speaker side by side, ordered by size or by price.HiFi SearchFind speakers by the specs you want.TrueScaleAudio
Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
References
Front view — side by side at true scale
AHarbeth Compact 7ES-3 XD2BCastle Windsor Duke
Harbeth Compact 7ES-3 XD2vsCastle Windsor Duke
The Harbeth Compact 7ES-3 XD2 stands 52.0 cm tall — about 5.0 cm more than the Castle Windsor Duke at 47.0 cm. At 90 dB against 86 dB, the Castle Windsor Duke is the easier load to drive and plays louder from the same amplifier. The Harbeth Compact 7ES-3 XD2 reaches deeper in the bass, down to 45 Hz versus 52 Hz. The Harbeth Compact 7ES-3 XD2 is front-ported and the Castle Windsor Duke is rear-ported. Both land in a similar price bracket, around $5,525 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Harbeth | Castle |
| Model | Harbeth Compact 7ES-3 XD2 | Castle Windsor Duke |
| Height | 520 mm | 470 mm |
| Width | 272 mm | 280 mm |
| Depth | 305 mm | 346 mm |
| Weight | 13.2 kg | 13.5 kg |
| Enclosure | bass-reflex-front | bass-reflex-rear |
| Drivers | 1× 25 mm tweeter (ferrofluid-cooled dome), 1× 200 mm mid-bass (RADIAL polymer cone) | 1× 200 mm mid-bass (woven polypropylene), 1× 28 mm tweeter (micro-fibre dome) |
| Frequency — low | 45 Hz | 52 Hz |
| Frequency — high | 20000 Hz | 22000 Hz |
| Sensitivity | 86 dB | 90 dB |
| Impedance | 6 Ω | 8 Ω |
| Recommended amp | — | 30–150 W |
| MAP (USD) | $5,290 / pair | $5,760 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | harbeth.co.uk ↗ | 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.

