I have demoed the Thiel 3.7 a number of times and I feel they are one of the best buys in high-end audio. I have demo the Sophia for a few hours but only heard a few songs on the Sasha.
What the Thiel have that make them stand out is they have a very wide ever dispersion. This gives them a very solid sound stage and imaging. It also makes them some what more flexible than many speakers as far as placement goes. The other nice thing about having a wide even dispersion is you can use less toe in (if you have a wide room) which will make the sound stage wider than if they were toed in.
They are also time alined and this will translate to more accurate timbres. But you need to sit 8-12 feet depending on how far your speakers are apart.They also have razor flat tonal balance.
As for the Wilson line (again I have very limited time spent with the Sasha) you will gain bass punch, slam if you will but you will give up other things to get there. They will not be time and phase alined (once you have it you will always want it). The Watt Puppy 8s (Sasha?) dispersion is also not as even though out the frequency range as the Thiel's. You often here people say 0.5" either way can make a break a wilson from being good to outstanding...
In the end all the speakers you listed are VERY good and it comes down to personal preference. The Thiels are the best buy IMO but I could see why someone would choose the Wilson... They have more body and an slight inner warmth that the Thiel 3.7s lack. Thiel are nothing but the truth like it or not.
What the Thiel have that make them stand out is they have a very wide ever dispersion. This gives them a very solid sound stage and imaging. It also makes them some what more flexible than many speakers as far as placement goes. The other nice thing about having a wide even dispersion is you can use less toe in (if you have a wide room) which will make the sound stage wider than if they were toed in.
They are also time alined and this will translate to more accurate timbres. But you need to sit 8-12 feet depending on how far your speakers are apart.They also have razor flat tonal balance.
As for the Wilson line (again I have very limited time spent with the Sasha) you will gain bass punch, slam if you will but you will give up other things to get there. They will not be time and phase alined (once you have it you will always want it). The Watt Puppy 8s (Sasha?) dispersion is also not as even though out the frequency range as the Thiel's. You often here people say 0.5" either way can make a break a wilson from being good to outstanding...
In the end all the speakers you listed are VERY good and it comes down to personal preference. The Thiels are the best buy IMO but I could see why someone would choose the Wilson... They have more body and an slight inner warmth that the Thiel 3.7s lack. Thiel are nothing but the truth like it or not.