I have two sig 2s 600 vertically biwired to my legacy focus 20/20s along with a legacy Goliath subwoofer with a built in 2000 watt amp my preamp is a paradigm p3. The sub is ran thru a xillica active crossover that came with the sub and I gotta say it’s just musical bliss at my house. I wanna talk about it all day. I streamed a Black Sabbath concert live at radio city music hall and it was like sitting in the crowd the snare drum was just giant and bass guitar would tickle my chest and constant goose bumps all over my body awesome to say the least if you can have the means to get two of them do it. Because that will be the best money you ever spent.