I am having a tough time choosing between these two amps. I am also torn between two types of subs. By choosing an amp, it will help me in choosing what sub to go with. I have a 2006 Chevy Colorado Crew Cab, and only have room for 1 sub (if that is of any help in giving me advice on which amp to go with). I can get the D2400 for about $310.00 or I can get the BXi1606D for about $240.00. Which would be better in value, durability, and efficiency? Any help would be greatly appreciated.