Be cautious of your expectations.
When you say you want bookshelves that go low enough that you don't need a subwoofer, be careful.
Depending on your expcetations of bass, you might be greatly disappointed.
Many bookshelves can go pretty low, particularly those made in the day the 2270 was not vintage, but with the current trend towards smaller drivers and cabinets, a lot of the heavy lifting has been left to standalone subwoofers.
Depending on your tastes and local availability, for music I might recommend a vintage AR-5 or possibly aJBL-26 or L-100, among many more of that era.
If you can accept that big bass in small boxes is difficult, all is not lost I find a pair of Sound Design RTS-3's, a two way with a 6 1/2" driver, very satisfactory but I accept the fact that it's low end won't match the two aforementioned (or many other) vintage speakers
I'm sure ther are others as well but don't rule out a subwoofer if your expectations are low, loud bass.