TrueScaleAudio
Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
Front view — overlaid at true scale
Click either cabinet to swap A ↔ B · Reference height: 985 mm (98.5 cm) · 1 mm = 0.57 px
Castle Knight 5vsFyne Audio F501E
The Castle Knight 5 and the Fyne Audio F501E stand at nearly the same height, around 98.5 cm tall. On footprint the Fyne Audio F501E is the wider cabinet (25.0 cm versus 20.0 cm). At 91 dB against 90 dB, the Castle Knight 5 is the easier load to drive and plays louder from the same amplifier. The Castle Knight 5 reaches deeper in the bass, down to 30 Hz versus 36 Hz. The Castle Knight 5 is a transmission line and the Fyne Audio F501E is down-firing ported. Both land in a similar price bracket, around $1,275 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Castle | Fyne Audio |
| Model | Castle Knight 5 | Fyne Audio F501E |
| Height | 985 mm | 984 mm |
| Width | 200 mm | 250 mm |
| Depth | 335 mm | 294 mm |
| Weight | 20 kg | 17.8 kg |
| Enclosure | transmission-line | bass-reflex-down |
| Drivers | 2× 150 mm mid-bass, 1× 25 mm tweeter (soft dome) | 1× 25 mm tweeter (titanium dome), 1× 150 mm mid-bass (multi-fibre cone), 1× 150 mm woofer (multi-fibre cone) |
| Frequency — low | 30 Hz | 36 Hz |
| Frequency — high | 24000 Hz | 34000 Hz |
| Sensitivity | 91 dB | 90 dB |
| Impedance | 8 Ω | 8 Ω |
| Recommended amp | 25–200 W | 30–150 W |
| MAP (USD) | $1,280 / pair | $1,270 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | castle.uk.com ↗ | fyneaudio.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.