Hi, I was hoping someone out there would have some experience with this. I'm trying to figure out how to wire a Polk PA1100.5 to a PA600.1 for the subwoofer signal. It says in the 1100.5 manual that these two amps are made to do this with each other. The 1100.5 manual shows that the channel for the subs can be switched to serve as a pass through to another amp for the signal. I am used to a good ol "IN" channel and an "OUT" channel so forgive the ignorance on exactly how this works. The 600.1 does have an "IN" and an "OUT channel but I am ASSUMING that I need to keep the 5 channel amp as the master amp because I'm running my speakers off of it. Is that true? My goal is to provide 600 watts RMS to each sub. I'm stripping my Yukon XL and I'm about half done on installing sound deadener so I need to figure this out so I can run wiring before putting everything back in. I'm running two sets of MM6501's for front and rear speakers and two SR124 DVC's for my subs in a sealed box. The 1100.1 would have been just fine for one sub but I got greedy and wanted two. LOL! Oh yes. My head unit is a Pioneer Avh-P8400BH. Any help would be appreciated and I welcome opinions or advice. An expert I am not.