You say that the center speaker is working fine. How about removing the tweeter from that speaker and connecting it to one of your Sofia’s to see if it works.
I’m in the middle of replacing the Vifa tweeters on the speakers in my second system now (Amrita Summits). After 20+ years one of them finally went so I figured I may as well replace them both. My center speaker (also Amrita) has the same tweeter (which was replaced a few years back) so I swapped them out to determine the tweeter was indeed the issue.
As for amps, from my experience the Wilson's are a bit on the bright side so I would think the Parasound or Levinson would be a nice fit. If you have decent audio shops in your area I would bring some amps home to listen to and compare.
But you have to get those tweeters working first!
I’m in the middle of replacing the Vifa tweeters on the speakers in my second system now (Amrita Summits). After 20+ years one of them finally went so I figured I may as well replace them both. My center speaker (also Amrita) has the same tweeter (which was replaced a few years back) so I swapped them out to determine the tweeter was indeed the issue.
As for amps, from my experience the Wilson's are a bit on the bright side so I would think the Parasound or Levinson would be a nice fit. If you have decent audio shops in your area I would bring some amps home to listen to and compare.
But you have to get those tweeters working first!