tc i know what im talking about when it comes to subs, ive been through so many subs and amps and hooked up systems so much. yeah the type R's hit hard AND sound good. thats why i said im getting them for my next pair of subs. and for you blakgtp, my friends amp was an 1800 watt Kenwood, that 1800 watt was peak power. it pushes the subs pretty damn good but you could go even bigger if you want. buy a named brand amp too, thats your your make or break part in the system i think. a 4,000 watt Lanzar is worse than a 1,000 watt kenwood for sure. go with name brand amp, and buy a ported box. let the sub breathe