I got a 2000 watt 4 channel amp and it gets power when i turn it on all the speakers play but the subs?? why is this does it have to do with the rcas or what, the wiring to the back of the subs and to the amp are correct, what is the matter??
check your HU. make sure if there is a setting specifying whether subs are in the system or not. i know my alpine has settings, where i can turn the sub preouts off or on if i want. check you HU. then check you're rca's. then check the sub wiring. if you've still got nothing, then it's a problem with your subs. (isolate the problem.)