I'm with dpac996. I have an older speaker presently in my system. Mirage M3Si. I have been building my new system for about 1 1/2 years and speakers are the last big category to replace. The Mirage uses a metal tweeter, made of titanium. Berylium is the common metal used now in place of titanium (like I said, mine are old speakers). I absolutely did not want to move into a Focal speaker due to them using a metal tweeter. I have always found Dynaudio speakers to sound just right in the midrange and the high frequencies. And thus, my decision was made and now have a pair on order for the new Dynaudio Contour 60i. They are due to arrive in the US during August. Well anyway, that's my story. The bottom line is that metal tweeters, especially if the room has a reflection issue, can be rather bright. However, you described a very well treated listening environment. I can only believe, therefore, that the metal tweeter is just not the right product for your listening taste. As others have stated, we have all made mistakes or error in judgement. We try, but ultimately move out of the product and make a change. The pursuit goes on. I wish you the best in finding and settling on what pleases you the most.