I thanks all you for the answers. I realize I was wrong or bad adviced. It was told to me that tube gears sound better than the SS, and combining them ( SS power /Tube pream ) give the best possible sound for the money. I am looking for better and clear highs (more real)better definition of each instruments and a more melodic sound than the SS I have is delivering. The true is I have listened several Hi End systems using Mark Levinson, Krell, Classe and other high quality SS that don't sound as good as a Cayin tube intregated or Rogue Audio gear. I am not the only one who has noticed that. I don't know where is the secret but some entry level tube gears can match ultra high end SS gears. At least, this is what I have seen lately.
Jorge.
Jorge.