I think that musicians hear differently than non-musicians. Much the same as I think that photographers see differently than non-photographers. Interestingly, it seems as if the two do it in opposite directions.
Of the conversations I've had with musicians (I have zero talent in that direction), they seem to be able to hear more clearly what's happening. That is, their brains fill in what they know is missing while still being aware of what is arriving at their ears.
Photographers seem to be more able than the general public to be able to exclude things from what they see while still being able to see what is in front of them.
I'm not certain about that store's choice of equipment - there was an effort some years ago between Spectral, MIT cables and Avalon speakers to create a synergistic system. That would have been worth listening to.
Anyway, just a few thoughts while I surf and drink wine! lol