Concur with Lrsky's assessment between Sonus Faber and Viennas's rich and warm sound. However, I think SF is a more laid back than Viennas, while Viennas are little more forward/in your face and the bass is more weighty. SF is easier to drive. They are both great speakers, pending on your musical preference. My assessment is solely based on an A/B comparison between the SF Grand Piano's and Vienna's Beethoven.
