I bought this to power my outdoor speakers. It has plenty of power to do the job on the speakers I posted earlier. It is a referb, mine arrived in perfect condition. Has bluetooth and wifi. You can steam music from your phone or tables and use the denon remote app to adjust volume and settings.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I use this one to power my home theater in a 9.1 configuration. I have been pleased with the outcome.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1