Paradigm is a excellent company and they did every thing for you i see,They will help out till the customers happy.I have two paradigm pw 2100 v2 and never have any problems,To be honest there are not many subs on the market that can actly take a beating then the pw2100 subs,when i say this dont get upset other owners but no matter what you give these subs for volume or bass abuse they just dont give up,The 10" driver and the amp are amazing and the little 10" sound better than 12" drivers in many subs,When i first read the specs on paradigm they said 23hz for this sub,After i demo the sub i could hear that this sub will go far below what they stated so i did a test for my self and found this sub will go down deep to 20hz,crank her up loud as you want and you will never find the driver wanting to bottom/pop and no sign of distortion and the member HT addict that wrote in will tell you this because he owns one,I tested the pw2200v2 and this sub popped the 12" driver many times on several movies,I have tried just about every movie with super low end like mr incrediable when the bomb falls with the pw2100,The driver took it as if it needed more of a bang.I have tried many subs and brands and they all seem to pop or bottom but there are also several that take it like the paradigm pw2100.