sonus faber duettoSonus Faber Duetto Active speaker with world class sound, ease of use, and every connection option you could need With Sonus Faber Duetto, a new symphony of wireless sound is born. In a duet, the tones of two instruments come together in harmony, and Duetto brings this musical inspiration into your everyday life. Duetto sets a new standard for wireless sound, blending a true Hi Fi experience with state of the art digital and analog connectivity. All