Just like mine baby. Old school. No dual voice coils, but hey, just run 2-4 of them. They sound as good as most subs, if you juice them enough. They were around before class D sub amps were common, and few amps but Orions could handle 2ohm or less loads. I just like tight fast bass, and 1 sounded good in my Dakota circa 1998, so 2 in my Civic Si should rock, I'll tell you tomorrow when I hook them up to my new Xtant amp.