Roland DP series confusion

[redheadrebby]

Hi,

I currently own a Roland HP-505, which I love the feel and sound of. However, it is not an overly portable digital (I will be going to uni and need some portability and compactness).

I have tried out several more portable digitals, and was most happy with a DP90SE.

Having looked online to order one, I am now confused, due to naming syntax and feature lists.

Are the DP-90S, DP90S, DP90SE and DP-90S EPE all the same?

Thanks