Front view — side by side at true scale
AKEF Q1 MetaBCastle Richmond IV
| A | B | |
|---|---|---|
| Manufacturer | KEF | Castle |
| Model | KEF Q1 Meta Meta | Castle Richmond IV |
| Height | 302 mm | 305 mm |
| Width | 180 mm | 190 mm |
| Depth | 277 mm | 262 mm |
| Weight | 6.1 kg | 6.3 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 25 mm tweeter (MAT aluminium dome), 1× 130 mm mid-bass (aluminium cone) | 1× 150 mm mid-bass, 1× 32 mm tweeter (soft dome) |
| Frequency — low | 51 Hz | 58 Hz |
| Frequency — high | 20000 Hz | 22000 Hz |
| Sensitivity | 86 dB | 87 dB |
| Impedance | 4 Ω | 8 Ω |
| Recommended amp | 10–150 W | 25–100 W |
| MAP (USD) | $749 / pair | $760 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | international.kef.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.

