TrueScaleCompare speakers at true scale.
TrueSpecsCompare technical specifications (up to 4 speakers).HiFi LadderBrowse every speaker side by side, ordered by size or by price.HiFi SearchFind speakers by the specs you want.TrueScaleAudio
Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
References
Front view — overlaid at true scale
AELAC Debut DF63BCastle Knight 5
ELAC Debut DF63vsCastle Knight 5
The ELAC Debut DF63 stands 109.4 cm tall — about 10.9 cm more than the Castle Knight 5 at 98.5 cm. On footprint the ELAC Debut DF63 is the wider cabinet (24.4 cm versus 20.0 cm). At 91 dB against 87.5 dB, the Castle Knight 5 is the easier load to drive and plays louder from the same amplifier. Low frequencies come from a 165 mm cone on the ELAC Debut DF63 and a 150 mm cone on the Castle Knight 5. On price, the Castle Knight 5 sits higher — about $1,280 a pair against $1,099 for the ELAC Debut DF63.
| A | B | |
|---|---|---|
| Manufacturer | ELAC | Castle |
| Model | ELAC Debut DF63 3.0 | Castle Knight 5 |
| Height | 1094 mm | 985 mm |
| Width | 244 mm | 200 mm |
| Depth | 268 mm | 335 mm |
| Weight | 17.6 kg | 20 kg |
| Enclosure | bass-reflex-rear | transmission-line |
| Drivers | 1× 25 mm tweeter (aluminium dome), 1× 165 mm midrange (aramid-fibre cone), 2× 165 mm woofer (aramid-fibre cone) | 2× 150 mm mid-bass, 1× 25 mm tweeter (soft dome) |
| Frequency — low | 31 Hz | 30 Hz |
| Frequency — high | 38000 Hz | 24000 Hz |
| Sensitivity | 87.5 dB | 91 dB |
| Impedance | 6 Ω | 8 Ω |
| Recommended amp | 30–180 W | 25–200 W |
| MAP (USD) | $1,099 / pair | $1,280 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | elac.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.

