Sonos Launches New $999 Arc Ultra Soundbar and $799 Sub 4 MacRumorsSonos announces the “breakthrough” Arc Ultra soundbar and Sub 4 The VergeSonos’ Arc Ultra soundbar is official, with revolutionary new speaker tech that offers ‘double the bass’ TechRadarSonos’ $999 Arc Ultra is a bass powerhouse in a (relatively) small package EngadgetAnother huge Sonos leak reveals key information about the new Arc Ultra smart soundbar Yahoo! Voices