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Gear Patrol's[3] announcement coverage (https://www.gearpatrol.com/audio/sonos[4]-ace-ultra-announcement-price-availability/) and Sonos's newsroom both state the $449 Ace Ultra begins shipping 29 September 2026, after its 1 September announcement. That shipping day is used as the pin date.
Bloomberg's own headline, "Sonos[1][4] Debuts $449 Ace Ultra Headphones, $699 Beam Ultra Soundbar, ChatGPT Tie-In," published 1 September 2026, matches the pin's claim and predates the pin's stored 8 September 2026 roundup date, though the article itself returned a 403 error and could not be retrieved.
Gear Patrol confirms the Ace Ultra is priced at $449 with shipping beginning 29 September 2026 and new "Headphone Linking" functionality, matching the pin's description and its roundup-sourced date.
Sonos's[1] own press release says Sonos Ace Ultra "will be available for pre-order starting September 1, 2026" at $449 "with general availability on September 29, 2026", and is the first headphone built on Headphone Engine 2.
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