The Sim Audio integrateds sound quite similar to the Classe. You may want to check them out as
Classe moving up to power amp from integrated?
I have a Classe integrated amp CAP-101 driving B&W 802 Matrix S3. It delivers 100W pc and the sound with the B&Ws is exceptional. But I hear that B&Ws do even better with higher power. I love the Classe sound, but my question is whether I would notice a significant improvement stepping up to a Classe amp with 200Wpc or more? Would it be worth the $2000 to $3000 upgrade?