thank you for yours comments and advises. I compared musical fideilty integrated 3.2, moon i-5080 and creek (I do not remember the reference but roughly the same price as MF). I chose moon i-5080, in despite the fact that it is 80wpc @ 8 ohm only (it would be around 100 wpc for 1.3 SE @6 ohm). dynamic and fast, neutral (not the case for creek), with a very, very extended bas (not the case for MF) and really impressive stereo image. it is true that with some more power it would be better, but i-3 model was not available (i-5 is out of budget...). as the i-5080 model becomes "old", I have got a huge discount - final price was 900 USD... now, I can go for better cables.