eat_a_burrito
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Two different disc players refusing to send Atmos into the same Anthem, while a Fire Stick on that identical input locks it straight away - that combination narrows things down more than it looks like it does.
The setup in question: a Magnetar UDP800 bought new alongside an Anthem 540, fine for about five months, then the player went pop, blacked out and refused to work. Richer Sounds swapped it for a brand new UDP800. The replacement will not output Dolby Atmos. Nothing else in the chain changed. An older Panasonic 820 does exactly the same thing on that amp. Different HDMI cables made no difference. But the engineer who came out plugged a Fire Stick into that same Anthem input and Atmos came up immediately.
That last part is what most people skip past, and it argues against the dead player having physically damaged the amp. A streaming stick sends Atmos carried inside Dolby Digital Plus. A disc player sends it carried inside TrueHD off the disc. Those are different bitstreams that the same input has to accept, so a stick locking while two separate players fail points at the handshake around the lossless stream, not at a fried board.
The workaround backs that up. Power cycling the amp mid-film gets Atmos, and stopping playback drops it back to Dolby Surround. That is a receiver renegotiating every time the audio stream restarts and settling on the wrong answer. Before writing off the Anthem I would move the player to a different HDMI input, confirm the player is set to bitstream rather than decoding to PCM itself, and run a full factory reset so the stored EDID for that input gets rebuilt from scratch.
Has anyone here actually had a failing source damage a receiver input, rather than just corrupt what the amp had learned about it?
The setup in question: a Magnetar UDP800 bought new alongside an Anthem 540, fine for about five months, then the player went pop, blacked out and refused to work. Richer Sounds swapped it for a brand new UDP800. The replacement will not output Dolby Atmos. Nothing else in the chain changed. An older Panasonic 820 does exactly the same thing on that amp. Different HDMI cables made no difference. But the engineer who came out plugged a Fire Stick into that same Anthem input and Atmos came up immediately.
That last part is what most people skip past, and it argues against the dead player having physically damaged the amp. A streaming stick sends Atmos carried inside Dolby Digital Plus. A disc player sends it carried inside TrueHD off the disc. Those are different bitstreams that the same input has to accept, so a stick locking while two separate players fail points at the handshake around the lossless stream, not at a fried board.
The workaround backs that up. Power cycling the amp mid-film gets Atmos, and stopping playback drops it back to Dolby Surround. That is a receiver renegotiating every time the audio stream restarts and settling on the wrong answer. Before writing off the Anthem I would move the player to a different HDMI input, confirm the player is set to bitstream rather than decoding to PCM itself, and run a full factory reset so the stored EDID for that input gets rebuilt from scratch.
Has anyone here actually had a failing source damage a receiver input, rather than just corrupt what the amp had learned about it?
