In this pack, you get a Yamaha RX-A 1080, 7.2 amplifier with zone 2. With built in wifi it can be controlled with Yamaha MusicCast or AV Controller app. With Bluetooth, Spotify connect and Airplay you have music streaming covered. The Focal Aria speaker pack is a marvel of French design and engineering. The use the proprietary flax speaker cone whose warm yellow colour matches the sound it produces. Velodyne is a Subwoofer brand and this includes the SPL 1000 Ultra 10 inch sealed sub that matches the Focal Arias perfectly. Links to all product pages are above and they contain full specifications.