Lots of detail, great imaging, not much bass?

Hi B_limo,
As Milpai implied, you'll first have to work to getting good gain from your system
(generally, avoid passives) - this will enable your system to open up/come to live
better with just minimal volume.

Then, look for well balanced speakers/monitors that will play nice and full at lower
levels - usually good efficiency ones.

Hence this way, you can do away from disturbing neighbors without sacrificing much
from enjoying full range sound.

From original post (as perceived from your request), you'll likely be getting many
recommendations of speakers with tendency to be tilted upwards having limited bass
~ you might want to avoid this. Good luck!

Milpai, he doesn't want ton. Few kg's are enough. ;)

B-limo,
Just wondering, why not simplify system since moving into smaller quarter?

Get an excellent quality integrated amp with tone controls ~ (adjust bass as you wish) +
loudness boost (for late night/low level listening) + built-in headphone amp (ready when
adding one). This, I believe will suit your purpose better, whilst giving more flexibility and
less clutter too (happy fiancé). Only then on to speakers later ~ when/if still needed.

Something like a Luxman / Accuphase / Mc Intosh unit would be nice. Just saying..

*Btw. House music with little bass is like living with no soul. So you still do need that bass
reserves for when no one's looking! ;)