my cd deck has a sub gain control on it. the other day it just stoppped registering that it was hooked up to an amp/sub. so i checked my rca's. they are all plugged up...unless they have a hairline fracture which i doubt.now heres where im caught up. i put my ohmeter on the "in" side of the amp and it read something like 2.5( didnt know which setting to set it on but all results were the same) then i tested the "out" side of the amp and it also read 2.5. since my amp is getting power but registering the same power input/output on both sides does this mean my amp is the problem? or should i look at my cd player?