A question in theory rather than system specifics.
I have always been a replace/upgrade your weakest link kind of guy. I also believe that synergy in a system is more important then having a collection of "all star" components. I do however, also believe and have built my system by starting with an amazing source component first and work your way to your speakers. I now have what I consider to be a system that may no longer have a weakest link. As fulfilling as my system now is, the audiophile "what if" questions still fill my head: My question:
In a system where your source and speakers are the ones that you plan to take to your grave, and you can only make one component upgrade to advancing a system closer toward the "absolute sound"; would you look to upgrade your amplifier or pre amplifier? What do you believe each brings to a system?