Im thinking of getting a set of Type X components and a single 12W3 for a friends truck. Im thinking of geting a 4 channel amp to run them all. So i guess i need about 150x4 @ 4, and 300x1 bridged @ 4? If anyone has some suggestions please let me know. We are on a prettyu tight budget so nothing to expensive, maybe in the 200-300 area...