I would echo @soix questions and would also be curious if you can tell us a bit about what you like in terms of sound. There are a ton of speakers available in this price range and the speakers you have are not exactly mediocre. For example:
Vivid Kaya 45s
Avantgarde Zeros
Wilson Benesch Vectors
Stereokonzept Model 2
Perlisten S7t
Raidho X2/X3 or C1.2
Vienna Acoustics Liszt
Canton Reference 2K
These are all radically different sounding speakers that are on (or near) your budget and will sound and look very different than what you have. I could probably come up with another 20 different speakers.
What I can't say is that any of these is inherently better than your Sophia 3s, just different. I love all of these speakers for different reasons. The question is, exactly what do you want? Are you open to adding subwoofers? How do you listen, dB level, focused or are you up and about? etc...
Vivid Kaya 45s
Avantgarde Zeros
Wilson Benesch Vectors
Stereokonzept Model 2
Perlisten S7t
Raidho X2/X3 or C1.2
Vienna Acoustics Liszt
Canton Reference 2K
These are all radically different sounding speakers that are on (or near) your budget and will sound and look very different than what you have. I could probably come up with another 20 different speakers.
What I can't say is that any of these is inherently better than your Sophia 3s, just different. I love all of these speakers for different reasons. The question is, exactly what do you want? Are you open to adding subwoofers? How do you listen, dB level, focused or are you up and about? etc...