No disrespect to the other posters, but I completely disagree with them. While the WP7 was a wonderful speaker, the Sophia 3 is a much more refined speaker. I have owned Sophia 3’s and also am very familiar with the WP7. Check out my system “Symply Synergistic” on Agon. The Sophia is a lot easier to drive than the WP7. It also has newer driver technology with the mid range and the tweeter and also newer cabinet material and bracing. When the original Sophia was introduced in 2001, the performance was so close, Wilson had to upgrade the then WP6 with WP7.