Depending on the speaker design, you may be able to remove some of the stuffing/polyfill. This may add more bass at low volumes, but will cause them to be boomy at loud volumes.
Good speakers at low volume?
It's a known fact that a lot of speakers "come alive" when they reach at least moderate volume levels. However, since I live in an apartment, I'm looking for a good speakers where I won't lose all the details while playing at low volumes. In that respect Audio Physic speakers are great, full of detail, unfortunately they lack dynamics for me when I happen to listen to rhythm driven music. I'm thinking 4-8K price range (Dynaudio, Dali...). Any suggestions are appreciated.