Taso...I've always advocated getting the best quality speakers; RCF ART 200A (12") and RCF 800A (15" subwoofer) since 1999. Downsized in 2016 from Yorkville powered to EVOX 8. It was tough going from NX750P (15") and LS801P 18" sub to the smaller EVOX 8. When you get over 70 years under your belt, things do get harder to lift (single operator). Like your setup. What is the average number of people serviced by your system?