You know what, I have Ncore 500 amps that I built, and I see comments like this pop up often. The Ncore based modules are amazing don't get me wrong, but they are not cheap! When I count everything, even without my time messing around, I was thinking for fun that there would be no way in small volume a small manufacturer could reach a 2000K mark, even with a quite simple and minimal design around the module. Basically, what I'm saying, the price we see from NAD, ATI, etc. Those amps are totally worth that. Even to the point that I'm not sure the hassle of DIY is worth it, you do it to learn or to do something special with it, not to save money. Now we see here one that falls a bit short in term of performance, it's unfortunate, and yes you want something that perform if you muster those 3k$, but I'll always vouch for manufacturer, like NAD that don't sell overly boutique luxury products, but still don't go and compete with Topping or SMSL because it's a lost fight in advance. We just can't expect that from a Canadian based manufacturer, Nad have been around for ever. They wouldn't be still there if they where trying to sell this kind of thing for 1k to please the "best sinad for the dollar" crowd. Think about that. A Dirac License for PC is 450$. Look at what you get here.