if you can afford them DEFINATELY go with kappa... reference is crap compared to them
if you amplify the kappas with a reference amp it will sound beautiful
2nd for kappa, but don't forget that this is very subjective. Try to find people that have them to get more of a feel. You're the one who's going to have to deal with them, not us.
2006 Mazda 3Behringer DCX-2496JL300/4 Focal 6W4311B Focal TN52JL500/1 JL10w6v2
refs are good for a modest powered system.
thanks for your answers, i'll take the kappa's