• Don't think so.

    I use a similar device to connect my gf's TV optical out to her old Sony 5. 1 AVR via coaxial (Scart being its second input option...brrrr)

    So now she can have all audio going thru it (Sky, terrestrial and smart TV apps). She wasn't using the avr at all earlier.

    Anyway my point is, no, you don't need more than that.

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