My setup is as follows: Denon 1800 A/V receiver L/R speakers: Infinity REF2005 (92db spl @2.83v and 1m) center speaker: Infinity CC2 (90db @2.83v and 1m) rear speakers: Infinity REF2001 (89db spl @2.83v and 1m) My questions are: 1) Are these speakers considered inefficient? 2) Are the Infinity speakers a good match for the Denon receiver? If not, what brand would be considered a better match? 3) This setup produces a "laid back" sound to me. Other setups I've heard seem to have more "punch" and "impact". Is that because of the Denon/Infinity combination, the fact that the receiver isn't real powerful, inefficient speakers? 4) What guage speaker wire would you recommend? The longest run is about 30'. Thanks for any help.