I had that first sub but it was a 15". One 15" on a crappy American Pro 600 watt amp and it still was quaking. Quaking well enough for some crackhead to steal my system out of my car, but I digress. Audiobahn is nice and I think i'll try some stronger 12" subs next time with maybe a power acoustik amp. They have really strong amps, really nice design and really good prices.