heys guys i'm new to soundigital products and i was wondering will it be fine if i hook up a kicker kx3 crossover to my sd5k, i know soundigital say you can only put 4v rms to that amp through the rca's, but the crossover i have is 5 v rms has anyone ever use a crossover on these amps and if so will the 5v pre amp output effect the amp in any way thanks. all opinions will be helpful