Harman Kardon makes excellent receivers. I have had three already. They have a new line. Most can be bought on E-Bay for alot less than any of the E-tailers. Just make sure it's new and has a US warantee. The differences are in the amount of watts driven to the speakers. They are all 7.1 or 5.1 with multi-room.

Enjoy.
Jim

Regards. Jim