I am making a little desktop entertainment center for music, pc gaming and television.

I am considering the supersat 3 due to their size and modern looks but want to make sure that they deliver full sound similar to a traditional good quality bookshelf speaker. I will be powering them with a TEAC AH01 integrated amp. I will also be using the HSU STF-1 subwoofer.

Thanks

I think the Supersat 3's with your HSU sub will sound just fine. A step up would be the Supersat 50 or Aon 2, but these might be to large for your application.

SuperSat 3's make a great desktop speaker. These are Satellites, not bookshelves. The are not full range speakers. If you want a full-range speaker, the Aon 2 would be your choice, but kind of large for a desktop perhaps.

That said, you mention you are using a sub, so why do you want full range speakers? The whole reason desktop speakers are small is because they are paired with a subwoofer to handle the rest of the frequency range the smaller speaker can't play.