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: 395 mm (39.5 cm) · 1 mm = 1.42 px
Sonus Faber DuettovsBowers & Wilkins Formation Duo
The Bowers & Wilkins Formation Duo stands 39.5 cm tall — about 5.3 cm more than the Sonus Faber Duetto at 34.2 cm. On footprint the Sonus Faber Duetto is the wider cabinet (19.7 cm versus 18.5 cm). The Bowers & Wilkins Formation Duo reaches deeper in the bass, down to 25 Hz versus 37 Hz. Low frequencies come from a 134 mm cone on the Sonus Faber Duetto and a 165 mm cone on the Bowers & Wilkins Formation Duo. Both land in a similar price bracket, around $4,000 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Sonus Faber | Bowers & Wilkins |
| Model | Duetto | Formation Duo |
| HiFi ladder position | #89 of 215 bookshelf | #141 of 215 bookshelf |
| Height | 342 mm | 395 mm |
| Width | 197 mm | 185 mm |
| Depth | 272 mm | 305 mm |
| Weight | 7.5 kg | 10.6 kg |
| Enclosure | bass-reflex-rear | sealed |
| Drivers | 1× 28 mm tweeter (silk soft dome), 1× 134 mm mid-bass (paper cone) | 1× 25 mm tweeter (Carbon Dome), 1× 165 mm mid-bass (Continuum cone) |
| Frequency — low | 37 Hz | 25 Hz |
| Frequency — high | 30000 Hz | 33000 Hz |
| Sensitivity | — | — |
| Impedance | — | — |
| Recommended amp | — | — |
| MAP (USD) | $3,999 / pair | $4,000 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | sonusfaber.com ↗ | bowerswilkins.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.