Hi Marty I bought the same NCore 500 monos as you did from Nord. I would love to talk to you about your thoughts . While there are good things about Colin's amps, there are some traits that are very troubling to me such as vocals. The clarity is just not there. Yes, the sound seems spacious but I find myself looking for reasons to go do something else after listening for 20-30 minutes. This is not good. I had NCore 400 monos I built that seemed to have a better sound(to the best of my memory) My number is 330-416-9044 Regards Randy
