How about moving from the Elipsa's to the Stradivari's?
If not, and I had the budget, I'd look into a set of used MBL's.
Large speaker recommendation
I've lived with the Sonus faber Elipsa speakers for 10+ years. Now thinking about upgrading to something with a bigger sound. Elipsa sounds great with classical music but not so great with pop/percussion type of music in my system/room. I do listen to classical music most of the time though, but hope to get a pair of speakers that are good in both worlds. Have also owned Tekton DI and Audio Solutions Figaro XL (really big, too big) but looking for something better, under $30k used or new, aesthetically pleasing. My system consists of: Mark Levinson No. 33H monos, Mark Levinson No. 523 preamp, Aesthetix Io signature phonostage, Basis Ovasion turntable, Vyger Atlantis turntable, digital components include Okto Dac8 Stereo, Oppo UDP-205, AMR DP-777 dac, Schiit Yggdrasil, and Bryston BDA 3.14. Room dimensions: 20x15x9 ft. Thanks! Ron