Hello, I am new to this board and picked it solely based on reviews I have been reading and the fact that everyone here seems to know exactly what they are talking about. I have a question, however, about a product I have never worked with. I am having two MA Audio Hardkore 15 subs delivered to me. I am going complete competition with a Saturn. Yes, a Saturn. Ha haa, thought it would be original. Anyway, is anyone here familiar with these woofers atleast to the point of knowing what the box size specs are? I have no problem with room, I took the back seat out completely and they're not going back in. I have two MA Audio HC4002 amps pushing these, one amp for each sub, and judging by the four 1.5 voice coils, I should have the amp working at approximately .67 ohms, giving me a little over 4000 watts RMS per sub. Hope this is enough info for you. I hope someone here can give me some scoop, I have written MA themselves on this twice and gotten nothing back. Thanks in advance, because I know I will be getting some feedback soon.