Hi and welcome here. For the objectively best sound, I think the R3 m or R7 m option would be best, and with 4 subs this probably won't make very much difference, so I would chose the R3 m. But maybe you would be happier saving money
and having towers with the Q7 m.
For long-term satisfaction I consider the R3 m very suitable, I only have them for a month (About the 5th time I mention this, but in this thread I repeatedly find a reason

) and am very happy.
Night has begun here. See you later!
Peace