I think you definitely are going to have to look to bookshelf designs with smaller drivers and less bass to minimize any sound intrusions upon the neighbors. Something I've learned is that the less air that is being pushed correlates to less potential to irritate the neighbors and this may or may not be consistent with specified low frequency bass response.
One thing I've noticed is that with a good quality tube amp and high efficiency speakers, you can really get away with listening with less volume than traditional setups. Hard to explain but you just get so much detail at lower levels that you won't have a need to turn it up.
Last suggestion, two speakers that I have that work well at lower volumes are the Silverline Minuets and then at a higher price range, the little Harbeth P3ESR but I'm sure there are many others out there that folks will recommend.
Good luck!
One thing I've noticed is that with a good quality tube amp and high efficiency speakers, you can really get away with listening with less volume than traditional setups. Hard to explain but you just get so much detail at lower levels that you won't have a need to turn it up.
Last suggestion, two speakers that I have that work well at lower volumes are the Silverline Minuets and then at a higher price range, the little Harbeth P3ESR but I'm sure there are many others out there that folks will recommend.
Good luck!