Apple TV 4K Gets Hi-Res Lossless Audio Support in tvOS 27
What You Need to Know
- Apple TV 4K gains Hi-Res Lossless audio support up to 24-bit/192 kHz in tvOS 27.
- External speakers must support high-resolution PCM passthrough for the feature to function properly.
- Audio engineers debate whether 192 kHz lossless provides audible improvement over 48 kHz lossless playback.
- TvOS 27 developer beta available now; general release coming fall alongside other Apple OS updates.
Apple is quietly closing one of the more awkward gaps in its audio ecosystem. Apple TV 4K has supported lossless playback since tvOS 26, capped at 24-bit/48 kHz, but Hi-Res Lossless, which covers anything above 48 kHz up to 24-bit/192 kHz, has been missing from the living room entirely. tvOS 27 fixes that, assuming you have a compatible external speaker setup connected.
The caveat about external speakers matters more than Apple’s announcement lets on. Apple TV 4K’s HDMI output routes audio through whatever receiver or soundbar is in the chain, and not all of them pass high-resolution PCM cleanly. Owners will need to verify their hardware actually supports the full signal before expecting any difference.
Whether the difference is audible is a separate argument. The gap between 48 kHz lossless and 192 kHz lossless is genuinely debated among audio engineers, with most controlled listening tests showing minimal perceptible improvement on typical consumer hardware. Apple has been expanding its high-res audio catalog and features steadily, so adding the format to tvOS reads more like completing a checklist than responding to mass demand.
What This Means in Practice
The developer beta for tvOS 27 is already available through Settings, System, Software Update, then Beta Updates on a supported Apple TV 4K. The general release lands in the fall alongside the rest of Apple’s OS updates.
Apple TV 4K is the only Apple device that streams to a home theater system by design, which makes it the logical place for Hi-Res Lossless to matter most. If you have separates, a quality DAC, and decent speakers, the ceiling is now 192 kHz on the couch, the same spec Apple Music already offers on iPhone and Mac. That alignment took three years longer than it probably should have.
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