epos Epic 5 vs. Elan 15

Hi All -

Thinking of going a bit of an up on my BW 685s (w/ Primare i30 & CD31).

Wondering if there are any EPOS people out there who can chime in on the differences between the Epic 5 and the Elan 15?

They are about the same price point - one being the Full range and the other being bookshelf.

My apartment is 9'w x 18' long listening area with a +7'6 ceiling - so I'm not dealing with a lot of space - looking for good imaging, clear tonality and that good rocking British sound!