Once more, thank you for all the input. If I'm turning into a bug, please ignore me.
I did more readings about the DACs mentioned by you. I see me going around QB-9 despite the USB limitation (unless USB disappears in next years, this is not a problem for me). I plan to keep it, if it is as good as people say. I love good sound but I have to get real...can't keep changing gear every 2 or 3 years). Best price in Portugal is ? 2800.
Of course, I canït keep my eyes away from Weiss web page and other web pages with reviews. The best price I find around here, for weiss Dac 202 is ? 5499 (marson-audio.com).
I guess we all can go crazy once in our life eheheh
Back to reality.
My big question is the one I had when I started this post.
Is weiss 202 a good mach for my actual gear (Primare i32 + ProAc) or a Dac like Qb-9 or W4S Dac2 would be a more reasonable choice? (I won't change Primare or ProAc that soon). My big problem is my lack of knowledge about the right balance among all this. I want to get the best my amp+speakers can give me but I keep thinking that the people who buy Weiss 202 already own amps and Speakers that cost many, many thousands ?.
I made some extra reading about PC sound UBS vs Firewire (but, as in many other areas, everybody have an opinion. I think they both are good).
"Ex-dem means ex-demonstration ie used only by the dealer and still under guarantee." thanks for explanation. I thought it was something like that but wasn't sure. They do same same here. I bought my ProAc for 1000 ? in a Audio Store (ex-demo) when they cost 2100 ? new.
About the PS AUDIO PerfectWave DAC. it looks great but there's something about the way it works...I'm not ready for kind of thing yet.
I keep thanking you all and a special thanks to
peteAllen
Enjoy your life!