For a second system I have been thinking of the Marantz Arch.

Is it any good or just good looking?  Thanks
@whatjd   You are the OP asking for help.  Why should those who might assist have to do that?  A bit presumptuous? 
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For something as obscure as the Arch, a link would have helped. It would right up there with using google. I thought is was something done on a balance beam. 👻

All the best,
it's groovey lookin'

how much could you sell one for if you bought it and didn't like it?

well worth $50 no matter what