1) you want a receiver with independent settings, most receivers have this setting going back a few years, unless you buy a very cheap model. The auto setup MCACC, Audyssey, etc. will help set the desired setting, it is very simple. You can always adjust after the fact.
2) receivers don't "sound" different, unless your introducing changes to the EQ, Calibration settings, room setup. They are designed to be ruler flat from 20Hz to 20KHz from the factory.
3) if you go with a Pioneer, you can experiment with subwoofer placement, and adjust the dB levels manually with SPL meter from Radio Shack or similar. The Sub Crawl can help you dial in the proper location.
ps: I also love Outlaw
