Sonos is joining the crowded headphone market with new noise-cancelling Bluetooth cans called Ace, and the US manufacturer known for its multi-room loudspeaker systems is targeting the premium segment with launch prices of $449 in the US and €499 in the EU. Owners of the Sonos Arc soundbar in particular are set to benefit, since the wireless headphones are set to be able to pick up cinematic sound directly from the speaker. The advantage of this is that multi-channel sound formats such as Dolby Atmos are processed on the soundbar and information on more audio tracks is transferred to the headp…