i am considering pulling the trigger on the mf x-dac v3. i already have the x-10 v3 tube buffer and i will probably get a channel islands audio or monolithic sound power supply for both of them and get rid of the wallwarts. the sick thing is that i own a outstanding redbook cd player. a symphonic line vibrato it weighs thirtyfive pounds and is a handmade work of art that sounds as smooth as silk. but i am obsessed with the fact that it does not do 24 bit upsampling and i feel i am missing something. if any of you guys were in my shoes what would you do?