Ok i been finnaly in the store to listen to some monitors : KRKs , adam A5x , Adam a3x , Yamaha HS50M. I got the yamahas ! The room i tested was about the same size as my room.
ADAM a3x : too weak for my taste , missing some low end ,great highs
ADAM a5x : Way better low end then the 3s , sublime beautiful butter highs
KRK 5 : too bassy ...i guess good for some electonic/dance music freaks
Yamaha HS50M : Great overall sound , excpecialy in the mids section, guitar sounded better then the Adams too me. Adams a5x would be my choice if i would do all the music on it. Yamahas were exactly half the price ...that in count it was a no branier to me . I might sound foolish but yamahas sounded better to me for guitar .... i guess its just me and my defective ears probably .....
Suggestion : ..... go try before you buy ....let the forums just be a direction what to look.