Blasphemy? Oh dear! I'll tell you what I am going to do this summer (when it gets a little warmer here in TooStoned ;--) I'm going to (after twenty years!) wash my CLS-IIz panels and see if there's any improvement (not that I'm unhappy now -- but I've no way to tell if the performance has "drifted" (down) over the ears. If there's no change (for the better) I can perceive, I really won't know what to do!? If I can spare $1500, I may (1.) buy some new generation panels, and (2.) make some improvements(?) to the electronics interface -- but Jim Power @ MartinLogan, whom I've know personally, practically since the company began, says I don't have to do either of those things, because the speakers have always been in a high and dry environment for all 20 years.
Unlike a lot of company guys, Jim has always been very candid (with me anyway) and I feel like I should listen to him. But I've also heard so many good things from folks who've "done stuff" to their old CLS's, that I'm left feeling anxious and conflicted -- Oy! I hope those people are not simply suffering from "emperor's new clothes" syndrome ;--)