klipsch cornwall iv upgraded crossovers

I have been running CW IV's with the Dynamat dampening upgrade as well as the VCap Odum and Path Audio Resistors per Don Sachs suggestions.  I love these speakers!  I still find the bass to be just OK, plenty of it, just a bit flabby and undefined IMO.  I have the CW's five feed out from front wall and have used a McIntosh MC275 VI as well as Pass Labs XA 25....augmented with four REL's, two front two rear.  Even with all RELs off, same sort of presentation.....a bit flabby and undefined.  Don't get me wrong....it's not bad, just could be better.  Surprisingly, with more power, the McIntosh tube amp actually a bit better control of bass than the Pass.  My question is, have any CW IV users experimented with the Townsend Isolation bars and gotten favorable results?  and how do your results compare to no isolation?

Thanks in advance!

@ptrck887 , Herbie’s Giant Gliders tightened up the bass for me, as well as making it easier to slide the speakers on hardwood. I affixed one under each corner with double-sided carpet tape.

BTW, I performed the same mods as you, along with swapping in WBT NextGen binding posts, and likewise love the results.

Mine were lined 100% inside with No-Rez. I ripped it out of one of them to the point of stock and compared them. I preferred the one without the No Rez. The No Rez seemed to suck the life out of them. I left the dynamat on the mid range horn. 
 

@ptrck887 , 

How are your CWs positioned? Mine have slap yo mamma tight bass. 

Thanks Mofojo,

I'm pretty good at speaker placement....these happened to end up at 5' off the frontt wall, 10' tweeter center to tweeter center toed in at approx 6" off each shoulder.  I sit 12' from speaker line and 17 feet off the front wall.  Incredible immersive soundstage...as I said the bass isn't bad and frankly I can live with it.  I have had other systems in other rooms where the bass was so focused and real I'd just like to get closer to that....thinking maybe the Townsend Isolation bars may help.  BTW...I'm on a 6" concrete slab floor carpeted.  Simple cork sandwiches helped.

Thanks

Just tuning into this interesting conversation now because I’m considering the CW IV’s.

I understand the various factors here. It is hard to see the logic of the CW’s not being improvable, unless the argument is that these speakers were designed without any price point consideration and they just happened to wind up at a mere $6k or so.

My guess is that if you found the engineers who designed these and got a few beers into them, they’d have all kinds of opinions as to how they would have perfected the design if they were allowed to spend more on parts or design. Note -- not what this or that user or DIY person wants to put in, but the designers themselves.

That could be wrong, but I’d be very shocked if they just happened to make the perfect speaker (given the design) at this price.