Kemper, power amp and cab at bedroom volume

Hi,i am considering a cab and a power amp for my Kpa. I think something like a caliber or a magnum and a 1x12 marshall would serve me well. I would like that amp in the room. The problem is the volume i can get to have fun. I can hardly do it with one 5 inch yamaha monitor so i don't know if a 1x12 is an improvement or not in terms of apartment volume/ fun. What do you think? is there a way to move some air at bedroom volume ( i think that's the problem)? if so, which is the best way to do it?