I'm looking for a receiver and don't know what people recommend. I would like to setup a 5.1 stereo with Polk RTiA's and my biggest concern is power. My issue is I don't have a 4k TV and have no intentions of buying one in the immediate future so I don't want to pay big money for one with that option as it may be outdated by the time I do upgrade the TV but of course still want to play the audio from the TV through the speakers. What are your suggestions? Thank you all in advance!