Sonos Ace Ultra spotted in FCC filing days after design leak

A new FCC filing, spotted by Lowpass, indicates Sonos is preparing to unveil a pair of over-ear headphones called the Ace Ultra. Sonos said during its third-quarter earnings call that it was planning a product launch event in September, and the filing suggests the Ace Ultra could be one of the products announced there.

The filing is heavily redacted, but the details visible point to an over-ear design similar to the original Sonos Ace, which launched in 2024. The filing lists five color options for the Ace Ultra, Greige, Shadow Black, Agave, Blush, and Sand, compared with the two colors, black and white, offered on the original Ace.

The filing also indicates the Ace Ultra will support Sonos Voice Control, the company's voice assistant. Bloomberg reported that voice support matters for a screenless device intended to interact with AI assistants and chatbots. Sonos CEO Thomas Conrad said during the earnings call that the company is building AI into its core business strategy, and Engadget reported that the Ace Ultra could tap into some of Sonos' current and future AI features as a result.

The FCC filing follows an earlier leak from leaker Roland Quandt, which showed the Ace Ultra alongside the original Sonos Ace. According to that report, the Ace Ultra has deeper ear cups and a repositioned wear sensor compared to the Ace, along with a thicker, shorter microphone housing, which could point to improved noise cancellation.

The leak also indicated Sonos has not added a 3.5mm headphone jack, instead including a 3.5mm to USB-C cable alongside a USB-C charging cable. Pricing for the Ace Ultra has not been reported. The original Sonos Ace launched in 2024 at $449.

The original Sonos Ace launched alongside a broader Sonos app redesign that Sonos later admitted it released too early, leaving the app missing key functionality and incompatible with the previous version for some users.

The Ace's TrueCinema spatial audio feature, which adjusts sound based on the acoustics of a room containing a compatible Sonos soundbar, was not released until a year after the headphones launched. Sonos has not confirmed the Ace Ultra or provided details on pricing, specs, or availability.