Definitive Technology Studio Monitor 65s

I read so much conversation here about different speakers.  My System is simple and Quite wonderful in SOUND! Our main fronts are L/R Definitive Technology Studio Monitor 65s. Center is Def Tech 9060. Our Sound room is 12 x 12.  We have 2 def tech subs SC4000 & SC6000.  Front Height and Rear speakers are Def Tech ProMontor 800.  AV Receiver is Pioneer SC-LX 701.  Our TV is a 2018 Samsung 65" KS8000. Sony Blu-ray 4K Player. This system is NOT real expensive and puts out Beautiful Audio.