I am in the process of installing a new sub and amp. I have a general idea on how to install it. What I dont understand is 2ohm and 4ohms and their meanings. I just bought a package deal through Crutchfield, a Boston 2 channel amp with a 12 inch Boston G1 sub with box. I understand the wiring aspects but it says when I wire the 2 channel amp to power 1 sub that it would be at 2 ohms where as the specs for the sub says it is a 4 ohm sub. I just need a better understanding on this or is there something I am missing to power this amp correctly...