I strongly suggest to hear a class D before you let go of this. I have yet to hear anything class D that sounds as good as a high quality tube or class A or AB amp in the upper mid and treble ranges.
I was horribly let down with the $4k NAD M32 vs. glowing review from Stereophile. My $350 Hafler 9505 blew it away in the treble and soundstage aspects.