Hi darkphyber, my apologies--not sure how we missed your post but the receiver you have should work great with our speakers. They will however respond very favorably to better quality amplification, so if you wanted to upgrade your receiver it will indeed pay dividends. I wouldn't say it's necessary, but something like a higher up ES model from Sony, or a similar level Onkyo, Pioneer Elite, or Marantz, etc. would be a worthy upgrade. Otherwise, the Sony--especially with the savings--is a very good deal and should work just fine.
Happy Listening!
Oliver
Oliver Amnuayphol
Home Theater/Audio Guru
Aperion Audio