9 year old Parasound Jc 1s or new Bel Canto 1000m monos?

Bel Canto's are some of the best examples of class D done right.  But usually the best way to approach a new system is to select the speakers first, and then get amps to complement.  It's certainly possible to do it amp first, or any other component first, but speaker first works really well.

That's because all amps do not work well with all speakers.  I'd find speakers that I'm crazy about and then see what the dealer uses with them as a starting point.  Most dealers have electronics that match up well, but there are no guarantees.

I’ve purchased factory refreshed, it can be returned product because the customer didn’t like them or brand new in box overstock, or returned for defects. It depends on the retailer, what their policy is. I’d phone them directly and ask.

I’ve owned the C372, and it’s a laid back sounding unit for sure. I compared the newer C326BEE, and the sonics were superior with the 326, and I bought it as a "demo" unit, but it was brand new.

One weakness of the Golden Ears is that the tweeter unit has a narrower dispersion, according to comments I've read, but that's about the only "con" vs many "pros".

Nice!  You really can't go wrong with the JC1's.