I HAD A pair of Andra-1's and upgraded to Mk.2's. I HAVE A 14 X 20 ROOM with a high ceiling. They sounded great with Mark Levinson 33H mono's. I would imagine the 3's are even more wonderful. All the bass you'll ever need and very natural sounding. I didn't feel they needed much improvement. No fussy positioning required. Wish I hadn't sold them.