What a news!!!!
Thanks to a firmware update coming to a plethora of receivers from Onkyo and its brands — Integra, Pioneer, and Pioneer Elite — they will all work with the Sonos app. The official list of supported network AV, stereo receivers, and processors will be announced in early June along with the firmware update and availability.
This power move is the result of the “Works With Sonos” initiative, which allows third-party manufacturers like Onkyo to not only mimic a Sonos speaker but also interact via mixing or creating groups, syncing with the Sonos app without requiring a hub.