upgrade suggestions from wilson sophias (original)?

thanks for the replies. I like everything about the sophias except the lack of very low frequencies (e.g. in electronic music). it also might be b/c I have tube amps, so SS might fix the issue. this might be as simple as getting a good-quality sub. system: CAT SL-1 MK III pre, Cary Slam-100 monoblocks (w/KT-120s).

oops. I forgot to respond to: 'what aspects of sound reproduction and system performance do you value most highly?' I have extremely eclectic taste so I've opted for a system that can do everything from folk music to orchestral to gothic-industrial. happily, it delivers - except for that very low (practically subsonic) bass.

I’d add a pair of good subs or, even better, a Swarm from Audiokinesis and you’ll be set. 

Add sub/subs. Especially for EDM type stuff. No reason to sell the Sophias...