korsun amp experences

if you have had any experence with korsun amps please chime in.
looking for quality,sound, dealer response (support), price, any reviews?
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I have one which NYSound had modified for 120 v. It really preforms well in every respect. I am always suspicious of halo effects but I do think it sounds better than my old Aragon, which has about the same power rating.

I have recently upgraded a Counterpoint, which seems to sound better still. But I haven't done enough switching to have a firm view on this.