While Klipsch Reference series(RF-7,RF-83,etc) are not considered "high end" speakers, they do offer great dynamics,high sensitivity, and excellent bang for the buck factor. For what it's worth, the RF-7's will knock you out of your seat with 2 channel and HT. The RF-83's are nearly as dynamic with smoother mids and highs. I would recommend an amp that is on the neutral/warmer side like B&K, NAD, or Marantz to help tame the highs a bit.
Bill
Bill