TrueScaleAudio
Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
Front view — side by side at true scale
Click either cabinet to swap A ↔ B · Reference height: 470 mm (47.0 cm) · 1 mm = 1.19 px
Focal Kanta N°1vsCastle Windsor Duke
The Castle Windsor Duke stands 47.0 cm tall — about 4.8 cm more than the Focal Kanta N°1 at 42.2 cm. On footprint the Castle Windsor Duke is the wider cabinet (28.0 cm versus 23.6 cm). At 90 dB against 88 dB, the Castle Windsor Duke is the easier load to drive and plays louder from the same amplifier. The Focal Kanta N°1 reaches deeper in the bass, down to 46 Hz versus 52 Hz. Low frequencies come from a 165 mm cone on the Focal Kanta N°1 and a 200 mm cone on the Castle Windsor Duke. Both land in a similar price bracket, around $5,880 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Focal | Castle |
| Model | Focal Kanta N°1 | Castle Windsor Duke |
| Height | 422 mm | 470 mm |
| Width | 236 mm | 280 mm |
| Depth | 391 mm | 346 mm |
| Weight | 14 kg | 13.5 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 27 mm tweeter (pure beryllium inverted dome), 1× 165 mm mid-bass (flax cone) | 1× 200 mm mid-bass (woven polypropylene), 1× 28 mm tweeter (micro-fibre dome) |
| Frequency — low | 46 Hz | 52 Hz |
| Frequency — high | 40000 Hz | 22000 Hz |
| Sensitivity | 88 dB | 90 dB |
| Impedance | 8 Ω | 8 Ω |
| Recommended amp | 25–150 W | 30–150 W |
| MAP (USD) | $5,999 / pair | $5,760 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | focal.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.