How do you find the bass? Im using mine in a sort of big untreated room and really feel like they can't keep up in bass frequencies, at least not in this room (6m x 6m). Unfortunately my amp doesn't have tone controls, so I can't add more bass. I might take them to a small room and hear how they perform to be fair.
I'm using mine as real bookshelf speakers (literally: they're sitting on some IKEA Billys), in my study which is not large - 2.9m x 3.3m - so I'm almost using them as studio monitoring. My study is all hard surfaces, glass windows (no curtains), two walls of bookshelves, one of which have wood & glass doors, and with the speakers on the shelves, and toed in slightly they're great. I suspect if I had bassier speakers I'd get booming without room treatment.
If my room was larger and/or had more soft furnishing, I'd look at the 3030i and if it was properly bigger I'd give the 3050i a try.
As it is, in my living room, which is large (5.85m x 6.2m) I've got a pair of MA Silver 8is for stereo duty, and for AV I've got RXFX and an RS-LCR - all helped out at the bottom end by a BK-Elec XXLS-400DF - which if I really want some grunt I can use with the 8is
As Al Ears said, you can't really avoid the physics and the 3020i don't go all the way down as low as bigger speakers would.