Another point, i have deal this audiophonics, they are terrific. I had a defective part, but was in another country, they sent me the replacement without needing to send in the defective part, it was 50euro or so.
I also have the same insides as the audiophinics amp but from another vendor, and i think from mesurements both these amps are totally transparent. They both are above the ability of humans to hear. I will get a lot of heat for my comment.