Yamaha musiccast 20 not working with TV Youtube app


Novice Member
I have 2 yamaha musiccast 20 connect with Yamaha RX-V4A to build 5.1 surround sound.

Spekaers are working when I play Youtube on my Iphone via Airplay.

But they are not working on my TV youtube app content.

Then they are working with my TV amazon video prime app.

Anyone have similar issue?


Distinguished Member
YouTube is only 2 channel stereo in nature so I'd assume you are engaging an upmixiing mode such as Dolby Pr LOgicrelative to the Airplay source and this isn't engaged relative to your ARC TV source? This issue will be resolved if you engage such a mode while using the ARC TV source.

Upmixing modes such as Dolby Pro Logic create pseudo channels for the speakers that wouldn't ordinarilly include audio if and when the source is stereo.

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