I am going to build a fiberglass box that fits under my rear seats. I can fit 10s or 12s. I will probably have 2cubic feet before port and sub displacement. I was thinking of doing 2 mach 5 ixl 10s ported, or 2 diamond d6s. i currently have a 10w3 sealed powered by a 500w alpine and its not cutting it. Im looking for subs that get really loud but still sound good. I mostly listen to rap but would like something that sounds decent on all types of music. any suggestions? its going in an 03 ram quadcab. thanks.