I am a current owner of the Salk HT-3 and a former owner of both the Legacy Focus and Signature. Of the two Legacy models, I much preferred the Signatures. I could never tame the bass of the Focus. I did like the Signature very much. I think it's an excellent speaker for the money.
But the HT-3 is significantly better than either Legacy. Incredible imaging, fantastic tonality, clear without any harshness. Truly disappears. Plays plenty low for normal music. Also looks way better and is more compact. They are the best speaker I've ever owned and I've owned quite a few. Maybe the best I've ever heard. Hope this helps.