To my ears the Tia Fourte just has a much bigger, richer, and textured sound. More realistic and organic sounding, and more musical. It is a little darker though, so that could be percieved as a + or a -. I have over 200 hours on the Dream. I think the Dream has a great price performance ratio compared to the other TOTL's. My Fourte's cost twice as much as the dream, they are not twice as good, but they are definately quite a bit better. The other reason is that I have tinnitus in one ear, and the Dream doesn't have any hearing tech so the tinnitus flares up more.