Ugh, upgrade fever again so soon. I've been very pleased with my new LSi9's, especially when driven by my Meridian CD player, an equally good 2-ch preamp, and 2 Outlaw M200 monoblocks (these are very nice, but the weak link I suppose). However I just can't get the 15's out of my mind - for looks and also I would like something with more bass impact without a sub (I do own a Hsu STF-2 but prefer not to use it for music). I have a set of LSi7's for rears but honestly IMO they don't hold a candle to the 9's. I was thinking of upgrading the 7's to 15's so I can compare them to the 9's. If I like the 15's then they will become the new fronts. Room size may have been a factor - approx. 23x16x9, though it's one of those awful living/dining/kitchen room combo arrangements.
My only hesitation is that I've compared the 25/15/9 at Tweeter and the 15's bass sounded relatively muddy, overemphasized, and underdefined. I like bass to be tighter and more articulate. However, they were only driven by Denon/Yamaha receivers and who knows what else may have been wrong with their setup?
So for those who have spent time with both the 9's and 15's do you say yea or nay to this upgrade?