Front view — side by side at true scale
ACastle Windsor EarlBMonitor Audio Gold 100
| A | B | |
|---|---|---|
| Manufacturer | Castle | Monitor Audio |
| Model | Windsor Earl | Gold 100 6G |
| HiFi ladder position | #164 of 215 bookshelf | #173 of 215 bookshelf |
| Height | 430 mm | 447.7 mm |
| Width | 240 mm | 230 mm |
| Depth | 296 mm | 357.3 mm |
| Weight | 9.5 kg | 14 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 165 mm mid-bass (woven polypropylene), 1× 28 mm tweeter (micro-fibre dome) | 1× tweeter (MPD III (Air Motion Transformer)), 1× 76 mm midrange (HDT C-CAM), 1× 203 mm woofer (HDT C-CAM) |
| Frequency — low | 58 Hz | 32 Hz |
| Frequency — high | 22000 Hz | 60000 Hz |
| Sensitivity | 89 dB | 86.5 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 25–100 W | 130–500 W |
| MAP (USD) | $4,930 / pair | $4,599 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | castle.uk.com ↗ | monitoraudio.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.

