I have an I ground pool with an underwater speaker. I am looking for a good speaker/amp/AV system to use with it. I would like to be able to listen indoors as well and house the amp indoors. At times, however, I want to be able to choose indoor or outdoor or both. Apart from buying a second amp with the Onkyo I tried just now, does anyone have any recommendations? AirPlay is a must. So far I've found the Sony STR-DN1030 but it is lacking a display which I don't like. Also, without using it I just don't know if it will do what I want it to do. I know some systems have "A" and "B" speakers and I guess that's what I need (?).