Aren't most CD changer inputs proprietary? i.e., if you buy a Sony changer, you can only use a Sony head unit to control it? If this is true, how would the Empeg folks be able to make generic changer controller?

i'm not asking for a generic controller specifically... the empeg boys would most likely have to pick a changer they were comfortable working with and offer controls for it... much as some companies offer oem to aftermarket adaptors for some changers (i/e honda stock radio to alpine changer)

i am far from being a programmer, but i assume the principals involved in this would indeed be similar to the oem to empeg work they have already done...

my understanding of d/a convertor technology is rudimentary at best... so i will not argue with the assertion that you have made... perhaps an extra aux in would be easier to implement than digital in... i really have no idea... but, does it really sound like a BAD idea?
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sancho