I'd like to know how you all feel about the following question: Which component has the most impact on overall sound of a H/T system.. An amplifier or pre-pro? This is comming from an individual looking at entering the world of separates.. However, I don't want this to become a separates vs. receiver post. If an amplifier is the main contributor to better sound, wouldn't it be more advisable and cost effective to purchase an AV receiver to use as pre-pro with all the current features and bypass the receivers interal amplifier and use additional $$$ for higher quality amplifier.. If the Pre-pro is the main contributer to better sound, wouldn't be advisable to purchase an amplifier with just enough capablility to fill the room with enough sound and use the extra savings for a better pre-pro. I realize this is a simplified assessment, but the key question is here. Which component, Pre-pro or amplifier, upgrade would make the biggest impact on a H/T system?