Great addition to system
Adding the 618S to my 615Ss was a great addition to my system. The punch and lows this sub carries is incredible. With presets on the 615s, I can get the frequencies where they need to go for optimum sound quality. I love the fact that these speakers are self contained (with crossovers and power amps), so all I basically have to do is plug it in to 110 and connect to the board. Mark Bruhn is an awesome person to talk to about anything and everything you need. Great person to work with.