I think that is way over kill and a waste of money. That's my opinion. If you think it's way over kill, or an waste of money, then why ask the question? That's a waste of forum space, that's my opinion. You asked for an 2krm subwoofer. Take a look at an SSA Zcon, the terminals are to fit 8awg wiring. So are you saying they made an wasteful decision? What about Obisidian, their OA line allows 4awg, same can be said for B2 with their XC line. It is an safety hazard to have too small of wire. As questin said, use an calculater. You have been on this forum for too many years to be spoon feed for ANY questions you have, especially when there is calculators readily available. My hds210 sq subs can take 10 gauge. does that mean I need to use 10 awg. lol. Ok, we can play that game. Crescendo Audio BC5500. Dual 1/0 inputs. So tell me what happens when you only use half the inputs, or attempt to use 4awg vs 1/0.