Thanks for you post about the chip amp. I bought a Griffer Powerwave amp a couple months back. I also was very impressed with it. I paid much more than you did for the Target... I think about $100.00 total. My digital amp has only 10wpc.

My finding were simular to yours. I was extremetly pleased with the bass from a amp that had only 10wpc. VERY GOOD BASS ! Mine is stock but these things are being modded.
I hooked the powerwave to my computer and my 2Pi towers to the Powerwave.. WOW ! Nearfield listening with the Powerwave and the Towers was quite reveling ! Also as you said... the highs were rolled off. Not a problem for me as my Towers are a bit too bright for me.

My Powerwave worked best with the computer. For some reason when I conected the digital amp to my preamp and source... I got a slight hum through my speaker. Not a bad one... but noticable enough to bother me in between tracks.

I believe it is only a matter of time and the digital amp will pretty much replace tube and SS amps. Smaller, lighter and cheaper.... and sound good too... how can you loose ? Mine even has a nice pretty blue light that glows for the tube lovers out there that want something pretty to look at while listening to there favorite artist.