Summary: This is by far the best sounding sub I have ever heard. I bought it as a factory refurb and wasn't quite prepared for the deep hard hitting bass that this speaker produces and ended up turning my amp down. It does need a big box and an amp strong enough to push it.
Summary: Friend gave me 1 stroker 15. I made a dual 6in ported box and I am running a kicker 300.2 bridged on it in my 72 bug. I turn my system up and my head hurts. This thing really kicks out the bass!!!
Summary: i havent bought the stroker....yet
but i heard 2 twelves with a punch 360 runnin em they sound 4 times better than my 2 kicker comp twelves (with a zr360 on the kickers)the box could be set up in two ways the smaller the box the smaller the amp u need but the bigger the box the bigger the amp and spl u ll piss ur pants with 2 15s in there i dont care how many ppl say these suk they''re probably jealous!