I am not sure how much you want to spend but A-bus from Russound is for me best way to go. No expensive and hot making amplifier in the cabinet , IR repeater includet and it will work with 2nd zone of your surr.receiver. For background music just enough. I would wire house with 16/4 and Cat.5 for each volume control in case you want to upgrade in the future. This is cheap and no high-end solution ....