@acman3 --
It sounds to me it's not really about the prototype Alura's taking up some (relatively limited) space in your living room; it's that there are any speakers in there that need a minimum of dedicated space for them to function properly. As has been suggested already, smaller speakers wouldn't fundamentally change that as they'd likely be a nuisance still to the other family members, unless smaller than a gallon of milk, situated in the corners and covered by plants and what not, which defeats the purpose entirely. Don't go there - you start out by giving an inch you'll end up losing much more than that.
So, don't get rid of the speakers you have, but have a deal struck out that they're staying where they currently are until a dedicated, separate listening space in the attic has been prepared. Stand up for yourself and your interest, man. You have a right to be there as well with what you bring along and that was initially agreed upon - don't forget that.
Btw., the midrange driver of your speakers, the great B&C DCM50, is almost worth their weight alone.