Do you want surround? If not, why not get a 2 channel receiver? I'm not familiar with ADS but the Yamaha should drive them. Probably not as well as a receiver with a hardier amp section. Better bet would be Onkyo who has a higher current output. If your budget permits something from NAD or Rotel may have more pleasing sound quality. If you pick a Yamaha with preamp outputs you can always add a power amp down the road if the receiver isn't adequate though.

Welcome to the forums, BTW