Magnepan's 1.7i c/w 2 DWM bass panels v 3.7i

Hi,

Would a pair of Magnepan's 1.7i's with two Magnepan  DWM Bass Panels be the equivalent or perhaps better than a pair of 3.7i's without Bass Panels?
The reason I ask is that in the near(ish) future I am thinking the possibility of adding a secondary system. I have set a budget, well the budget has really been set for me really of about 10k, to Include speakers, amp, cd player. Any thoughts/views/experiences would be greatly appreciated. I have set my mind on a pair of Magnepans.
I recently got out an aged pair of MG1's that I have had stored away for a long time, and I liked the way they portray music, I want 'more' of the same, as it were.

Thanks in advance.