1. Do I need to upgrade my receiver to maximize the potential of my new Axiom speakers or will my current one do?
2. can I just buy a basic Denon receiver that has HDMI inputs and use the Apple TV to do the streaming.
I am not an overly technical person, so anything that makes it easier to just watch a movie or listen to music is a plus. I am certain that I will not use or understand many of the features available in many of the receivers I have looked at. Simple = better.
You did not specifiy if the Apple Tv was your only source. Do you use a cable box, dvd/blu ray player? Or, is the Apple Tv the only source you use?
Here are a couple denon's. these are in the 300$ range.http://www.accessories4less.com/make-a-s...Receiver/1.htmlhttp://www.accessories4less.com/make-a-s.../Airplay/1.html
If all of your sources have HDMI, and your TV has HDMI, then i would think about this one, which is less expensive than the above options. The one below is 200$http://www.accessories4less.com/make-a-s...Receiver/1.html
I have personally bought stuff from this company. To this day the items that i bought from them, 8 years ago get used on a daily basis. Good luck.