klipsch cornwall iv upgraded crossovers

I own a pair of cornwalls, amazing speakers they are paired with MC452 power  and a MC 70 tube pre.I play cds only on a yamaha C2100. My question is I hear people talking about upgrades to the crossovers on the corns  and softening the horns with  sound tape . Do any of those changes work,one or the other and do they make it worthwhile. Would like input from anyone who has tried the upgrades and who they used


If you found the CW IVs to be bright, hard to listen to, and basically fatiguing after 20 minutes why did you buy them in the first place? 

When first purchased, I listening to them in a prepared showroom .They were in my price range and I liked  the sound. I didn't have hours to spend listening and comparing. And not all music made me yawn. I listen to mostly  rock and roll 60s to 70s and 80s  100pct CD's  I found that better quality recordings were amazing and ok ones  weren't. but that's not the point Trying to make your system sound better is what we do, part of the hobby. My earlier tread in the beginning of this post, lists my changes in equipment and where I am today. I'm very happy with my system BUT always looking to improve it 

 I find non damped horns unlistenable, particularly the metal / aluminum/ plastic type. Most wooden horns I have heard, do not have these issues.  Been damping for 55 years, and there is " a sound " to the ringing / vibration to most horns. My clients have always appreciated the " improvements ". Enjoy, MrD

Most of the horns I like don’t necessarily require additional damping, including those made of metal or resin or plastic.  I like these horns because they were made right from the start.  But, it doesn’t hurt to try damping if it is reversible.  

@larryi , I am extremely sensitive to these nasties I speak of. I am interested to learn about what you have heard, that were made right. My best, MrD.