It depends on so many things. To me if the speakers were initially very good but taper off, that sounds like a room and/or placement problem. I found this before I got into room treatments, EQing and distributed bass. I'd get a new pair of speakers, and they would be exciting for a little while, and then after a while I would get bored of them. After dealing with the room that changed completely. It also depends on what your criteria is for a good loudspeaker and what you enjoy most in sound reproduction. For me it's detail, sound staging, clear midrange and articulate bass (in that order). I want my music listening to be an experience, and superb detail and sound staging do that for me. I like to close my eyes and forget I'm sitting in front of a stereo. To achieve that it takes two things for me, one is a speaker exactly like the KEF LS50, and two a properly tuned and treated room. Also, don't discount your mood in these things, and what music you are playing. Are you playing the same music you always listen to? Or are you finding new tunes to listen to? Listening to the same music over and over again gets boring. Try to find some new albums and music to listen to and it may revitalize your interest in the speakers and your stereo. Why do I say this? Not to defend the LS50, but to perhaps stop you from making a mistake like I did. I sold my LS50s the first time around because the room they were in was horrible acoustically. I knew the speakers were great, but the room was just awful. I always regret that sale because now I am in a larger room, and have far better acoustics. However, it took me some years but I finally got back there. And, I learned a lot along the way, which I am now applying to my new experience with the LS50s. There is no other speaker I would want at the helm of my stereo than the LS50. It's just that good. Of course at the end of all of this, the LS50 may just not be your cup of tea. That's always a possibility.