Adam, that is exactly my "gig rig" and has been for about four years. I've never tried just an Eden 115 with that head, so I can't compare that for you, sorry. I really like the flexibility of this rig (550 and two 112s)--and the portability. And, hey, I like the sound, too...
Fender Jazz Bass Club #711.
Club Sadowsky #231 (leave of absence).
Lakland Owners' Group #368 (leave of absence).
G&L Club #395. www.bigbossman.org