TrueScaleAudio
Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
Front view — side by side at true scale
Click either cabinet to swap A ↔ B · Reference height: 16.9 in · 1 in = 33.08 px
Sonus Faber Concertino G4vsCastle Windsor Earl
The Castle Windsor Earl stands 43.0 cm tall — about 11.6 cm more than the Sonus Faber Concertino G4 at 31.4 cm. On footprint the Castle Windsor Earl is the wider cabinet (24.0 cm versus 21.2 cm). At 89 dB against 85 dB, the Castle Windsor Earl is the easier load to drive and plays louder from the same amplifier. The Castle Windsor Earl reaches deeper in the bass, down to 58 Hz versus 60 Hz. Low frequencies come from a 134 mm cone on the Sonus Faber Concertino G4 and a 165 mm cone on the Castle Windsor Earl. Both land in a similar price bracket, around $4,965 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Sonus Faber | Castle |
| Model | Sonus Faber Concertino G4 G4 | Castle Windsor Earl |
| Height | 12.4 in | 16.9 in |
| Width | 8.3 in | 9.4 in |
| Depth | 11.7 in | 11.7 in |
| Weight | 14.6 lb | 20.9 lb |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 1.1 in tweeter (DAD Arrow Point soft dome), 1× 5.3 in mid-bass (paper cone) | 1× 6.5 in mid-bass (woven polypropylene), 1× 1.1 in tweeter (micro-fibre dome) |
| Frequency — low | 60 Hz | 58 Hz |
| Frequency — high | 25000 Hz | 22000 Hz |
| Sensitivity | 85 dB | 89 dB |
| Impedance | 4 Ω | 8 Ω |
| Recommended amp | 30–150 W | 25–100 W |
| MAP (USD) | $5,000 / pair | $4,930 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | sonusfaber.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.