I have had my 4ch 502 for 30 days now. At the time of the upgrade I also bought a Monoprice HTP-1 and the combination is great. While I won't try and compare my Buckeye to my previous amp because I changed processors at the same time I am really happy with my new setup. That is all that matters to me.
I'd like to mention that I broke the light on the faceplate. Not sure what I did but it was 100% my fault. @Buckeye Amps took care of it immediately. I installed it and everything is working perfectly. Customer service was top notch. He responded to my email very quickly and I think the new light was in the mail the next day. I can't fault him that USPS took weeks to deliver it.
I'd like to mention that I broke the light on the faceplate. Not sure what I did but it was 100% my fault. @Buckeye Amps took care of it immediately. I installed it and everything is working perfectly. Customer service was top notch. He responded to my email very quickly and I think the new light was in the mail the next day. I can't fault him that USPS took weeks to deliver it.