I have noticed a considerable improvement in picture quality on the dune max to the 900b---even my girlfriend noticed the difference and alot more detail too.
I havent checked with the dune base 3.0 I got because that is in my cinema room.
I noticed the difference while watching some tv series I have.
I couldnt believe the difference
the 900b is really garbage tho in SO many ways
but my dunes dont do 3D but might look into another player for just 3D
The latest Dunes do 3D, although they aren't quite as stable as the pre 3D dunes