The AMP2 as I built it is a killer.
Rock solid bass along with extremely detailed and fine mids and highs.
This one is my new reference above all what I've heard, almost whatever the price is.
Thanks to Jan for this.
Let's put it simple : my advice is to aim at perfection for the power supply. It is VERY important and has A LOT to do with overall result.
Picture of the setup used for first listening test : http://www.dcx2496.fr/photos/amp2works.jpg