BassAndBeer
CarAudio.com Elite
hooked up 2 of my havoc 18s to one 1600.1 brutus amp wired down to 1 ohm. I had the subs sitting in the hatch, free air and just from the two subs moving as much as they were it was flexing my kitchen window. that's insane. then I took them out and connected the other two and yeah they have crazy excursion. I didn't go gentle on them, im to impatient. lol