Should I eliminate my preamp?

This appears to be a perennial question and is asked on a regular basis. Lots of threads with great discussions but no conclusive answer. It boils down to taste. For me, For the types of music I listen, I love the "color/distortion" that a tube preamplifier adds to the texture of the music and my brain translates that into musicality, life, and can paint a more realistic soundstage in my head. I could care less if it is not completely accurate but on the other hand this color sounds more like live music to me.  

"I can give you the maths if you want."

An offer that is hard to refuse, if not too complicated for my pay grade... 

George, Ralph, thank you both for taking the time to explain the math. I had to read them twice to understand the details but it does make a lot of sense. It also explains why some folks report that using different interconnects makes a big difference in sound quality while others don't hear a difference.