A high quality (and usually higher priced) pre will only enhance the listening experience. Most people who say no preamp speak on theory or have just never used a good enough pre to hear the difference themselves.
Should I eliminate my preamp?
I have been using my Audio Research tube preamp and Bryston amp to drive Magnepan speakers for years. Recently I added a Oppo blue ray player to my system and connected directly to my amp using the balance cables. The reason was to eliminate the signal having to go through another piece of equipment before it hits the amp. Am I wrong or what am I missing?