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Compare speakers at true scale
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References
Front view — side by side at true scale
ACastle Knight 1BQ Acoustics 3020i
Castle Knight 1vsQ Acoustics 3020i
The Castle Knight 1 stands 29.0 cm tall — about 1.2 cm more than the Q Acoustics 3020i at 27.8 cm. The Castle Knight 1 reaches deeper in the bass, down to 46 Hz versus 64 Hz. Both land in a similar price bracket, around $365 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Castle | Q Acoustics |
| Model | Castle Knight 1 | Q Acoustics 3020i |
| Height | 11.4 in | 10.9 in |
| Width | 6.5 in | 6.7 in |
| Depth | 10.4 in | 11.1 in |
| Weight | 9.9 lb | 10.6 lb |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 5.1 in mid-bass, 1× 1 in tweeter (soft dome) | 1× 0.9 in tweeter (soft dome), 1× 4.9 in mid-bass (coated paper cone) |
| Frequency — low | 46 Hz | 64 Hz |
| Frequency — high | 24000 Hz | 30000 Hz |
| Sensitivity | 88 dB | 88 dB |
| Impedance | 8 Ω | 6 Ω |
| Recommended amp | 15–100 W | 25–75 W |
| MAP (USD) | $380 / pair | $349.96 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | castle.uk.com ↗ | qacoustics.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.

