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Compare speakers at true scale
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References
Front view — side by side at true scale
AJamo C605 MKIIBCastle Avon 4
Jamo C605 MKIIvsCastle Avon 4
The Castle Avon 4 stands 95.5 cm tall — about 9.3 cm more than the Jamo C605 MKII at 86.2 cm. On footprint the Jamo C605 MKII is the wider cabinet (20.8 cm versus 18.0 cm).
| A | B | |
|---|---|---|
| Manufacturer | Jamo | Castle |
| Model | Jamo C605 MKII MKII | Castle Avon 4 |
| Height | 33.9 in | 37.6 in |
| Width | 8.2 in | 7.1 in |
| Depth | 13.4 in | 12.2 in |
| Weight | 38.6 lb | 38.8 lb |
| Enclosure | bass-reflex | transmission-line |
| Drivers | 1× 1 in tweeter (positive soft dome), 1× 5.3 in midrange (Hybrid Composition Conical Cone (HCCC)), 1× 5.3 in woofer (Hybrid Composition Conical Cone (HCCC)) | 1× 5.1 in woofer, 1× 4.5 in midrange, 1× tweeter (ribbon) |
| Frequency — low | 45 Hz | 45 Hz |
| Frequency — high | 20000 Hz | 20000 Hz |
| Sensitivity | 89 dB | 89 dB |
| Impedance | 6 Ω | 8 Ω |
| Recommended amp | 140 W | 25–100 W |
| MAP (USD) | $999 / pair | — |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | jamo.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.

