First amp.

No first hand experience w/any of them. The Denon's were not highly reviewed on "What Hi-Fi." They're European models, yes? One thing I will they you, it's all about "synergy." How components match up w/each other. Some sound great toegether, others not. Match a warm amp w/a warm speaker and you have too much warmth. Match a warm amp w/neutrel/lean spk. you MAY have perfection. Then what are you looking for sound wise? What spks are you using? Etc, Etc... It looks like you're looking for an int. amp. There have been a few threads lately on this subject. Sorry I couldn't help w/your direct question. Bill.

There have been several threads recently regarding affordable integrateds. I know many members here think highly of Onkyo; try looking thru the Amp/Preamp section of the forums.

BTW, tell us your budget and you need to consider the speaker you will be using.

Have heard the Pioneer a20 with the Pioneer 22s.
You would have spend much more to get better sound.
Both can be purchased at substantial dicounts.