I purchased a used Ax400 over the weekend and I'm trying to figure out the crossover settings. I don't have the manual and have had a hard time finding much info other than just specs on this amp searching online. I'm looking to use the front channels high pass and the rears low pass until I can buy a dedicated sub amp (entire system was stolen 1 1/2 weeks ago). I know that the amp has an internal crossover but have no idea on how to set it. Also will this amp have any problems with a 5 volt preamp signal? I have a newer eclipse deck and have read online that the older PPI's don't like higher input voltage... Thanks for any help.
