I started off with a pair of Performa2 F52s. Loved them. I wondered if this is how good their mid level speakers are, how much better will the Salon2s be? Since I had a chance to get them at a very good price I jumped on it. As good as the F52s were, I wasn't all that thrilled about the looks. To me, the Salon2s are drop dead gorgeous and I was willing to pay the price just for the looks alone even if there was no improvement in SQ over the F52s. Fortunately for me, there was an improvement in sound, but it was not huge. I wasn't expecting it to be.
The F52s were already very good to me. Most noticeable improvement was the prodigious amounts of bass present in the Salon2s that was not there in the F52s. This is not surprising going from 6.5" to 8" bass drivers. The tweeters have better clarity, but the difference was not nearly as notable as the bass increase. Mids were similar. If there was an improvement I didn't notice it. The only downside of the upgrade was that my room is too small to do the Salon2s justice. They need to be farther away from boundaries than I can afford. In this respect, the F52s were better for my setup. I lost a little bit of expansiveness of my soundstage due to such a large speaker in a small-ish room.