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: 18.5 in · 1 in = 30.26 px
Castle Windsor DukevsFocal Kanta N°1
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 200 mm cone on the Castle Windsor Duke and a 165 mm cone on the Focal Kanta N°1. Both land in a similar price bracket, around $5,880 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Castle | Focal |
| Model | Castle Windsor Duke | Focal Kanta N°1 |
| Height | 18.5 in | 16.6 in |
| Width | 11 in | 9.3 in |
| Depth | 13.6 in | 15.4 in |
| Weight | 29.8 lb | 30.9 lb |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 7.9 in mid-bass (woven polypropylene), 1× 1.1 in tweeter (micro-fibre dome) | 1× 1.1 in tweeter (pure beryllium inverted dome), 1× 6.5 in mid-bass (flax cone) |
| Frequency — low | 52 Hz | 46 Hz |
| Frequency — high | 22000 Hz | 40000 Hz |
| Sensitivity | 90 dB | 88 dB |
| Impedance | 8 Ω | 8 Ω |
| Recommended amp | 30–150 W | 25–150 W |
| MAP (USD) | $5,760 / pair | $5,999 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | castle.uk.com ↗ | focal.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.