So, has anyone tried out BOTH the X3 and the X4? From what I can see the main difference is the sounds. X3 has stereo sound and the X4 has Dolby 5.1 surround sound. There are a few other things as well, but that's the main one.
If you haven't tried both...tell me what you think of the one you have.
Also...I won't be buying the X31 or X41, the X3 and X4 are cheaper options and "practically" the same thing.