Would the 7000 automatically turn on of a source was selected on the Core? This is if the speakers are connected to the 7000 and Core connected via Tape. But then I lose the Tape…
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No, the 7000 won’t turn on in that case.
When the speakers are connected to the Core (and the 7000 to the line in of the Core), this will turn on, when you e.g. start a CD on the 7000.
As Steve says, set the 7000 to approx 70-80 % and leve it there. Then control the volume via the Core…..you’ll probably end off using the sources of the Core most anyway.
In your case try both ways to see what suits you best 😉
MM