Replacement for Vandersteen 2ce

Though I know it may not be something you want to hear...
My thoughts would go to changing first the speaker cable to AQ. A set of GO-4 isn't too expensive. I use them for my Treo's and find them a good match. Johnny probably knows your current cables and can give you good advice.
Second, I would change the Krell to an Ayre or Belles. They just seem to work better with Vandy's.
You have a nice system, but sometimes it takes a bit of tinkering to get 'synergy'. I think you chose a very good speaker, too.
Get Johnny's take on this. He is one of the best out there and won't try to sell you anything. Trust me.
Bob

@gdnrbobThanks Bob
I was thinking that initially and even demoed Shunyata Deltas but yes I will reach out to Johnny
thanks so much!!

Love my Tekton double impact monitors, solid, detailed and lots of bottom end thump

How old are your 2 CE's? The newest versions are light years better sounding than the older models. But as John Rutan suggests, setup is critical, especially tilt back. I have the Treo CT's, and have never looked back.

@mr_m The CE’s were purchased in 92-93 new from Ocean State Audio boxed for quite a few years and recently brought out. Did not like the old parasound HCA 1200 amp that powered them but my Krell has improved them significantly. Room is 16” wide x 14” deep snd have them 3 feet from back wall toed in slightly and tilted back a few degrees.