I am running a 6.2 sys with (4) KLF 20"S (2) C7"S and (2) HSU 15 ULF subs (3) adcom 5802 marantz 7703 LG 65" 9500 UHD LG 4K player lots of mods to the speakers , new sonic caps and wires 12g and 14g all have Ti tweeters and using silver wire XLR cables on the amps
KLF 20 with high strand 12g and 14g ofc wire and sonic caps in the xover"s and Ti tweeters in all of them (2) frount and (2) rear with (2) C7"s for a 6.2 sys