I agree with break in on the 2.5s.My set sounded great at approx. 125 hours on them then the went the other direction(meaning to the bad).I ran a break in cd 24/7 for about another week and wow they started back in the right direction.Didnt listen again for a few more days of breakin in and they sound fantastic.The sound stage is extreme,the imaging is precise ,actually scary precise.Very non fatiguing which is always great. I have several sets of speakers,amps etc and have no desire to make any changes in the room thats how pleased I am with these speakers