Turbofc3s,
Technically, the original non mkii ref1000's are essentially stock Icepower modules in a nice box like many and the current resale prices reflect that. I would not expect much if any difference, and an apples/apples comparison.
mkiis have clearly identifiable technical differences visible inside in an aditional input circuit (benefit mainly with tube pre-amps and similar to Wyred) and power supply supply circuit, which typically only the more expensive Class D amps do.
Despite the nice looking package with good build quality, I would expect BC would catch some flack for the prices they asked for their original Icepower amps in comparison to others. I guess the sound quality and target audience enabled this.
Before I bought my ref1000mkiis used, I had the seller open them up and send me internal photos in order to make sure that they were what was advertised, since cosmetically, on the outside they are mostly identical, except for the model label, which I would not necessarily trust alone in that I am very suspicious of a lot of dealings that goes on on the internet these days, especially when attractive pricing is apparent.
