@mahgister 1+
You can not consider the sound quality of a speaker without taking the room into account. They are two parts of the same transducer.
It is relatively easy to assess build quality. Certainly, the amp and speakers have to be matched.
If all those qualities are essential to you then I suggest you get a digital preamp/processor and you can make any speaker/room sound almost like anything you want. Some room treatment is always necessary.