I really am surprised with the room shaking power I get from this sub. I have a class-d mono block hooked up to this setup. I originally had a Eminence sub in this box so it needed more area than I would imagine this sub usually gets .. but I am so impressed. I really wasnt expecting much since I just wanted something cheap to fill in this box and use it in my bedroom. I now get self conscious watching movies since my house shakes and I now have to worry if I am pissing off my neighbors.. all from a 10″? yes, in this case.So, yes I am happy.