Tom, I didn't say the speakers where sounding bad all the way , when it comes to criticise at this level of performance you become a little bit maniac with small defficiencies , the effect I get when listening to a non vocal jazz performance is very good with a little overall dryness and thiness on some instruments , but with the vocals it gets pretty much obvious that there are some beaming in certain intonations at some frequencies , when the project cost you almost 4k and a lot of hours of building and installing , specially when you get a design by a reputed and capable speaker designer you expect to get close to perfection when it is claimed that you could compare your babies to more than 15k commercial speakers , and i've listened to much less expensive speakers with no deficiencies of the sort , plus that after a 30 min listening session you get listening fatigue wich I dont get with a commercial pair I own (with of course less performance in other aspects like power handling and distortion ) . I'm still in search of solutions ! Maybe adding some mass to the speaker cones like a coat of some material ? if someone has experienced such a thing I would be happy to hear about it . Thanks JP