Hey there everyone, like Zach I am also new here. Greetings all! I have a question or two and this seemed like a good place to seek answers. And please forgive me if my terminology is a little off, I am putting together my first system since the mid-Nineties so its been awhile. ATM I have put together a pretty decent budget system consisting of all entry level gear. Sony Xplōd™ XS-GTX1622S Fronts Polk Audio db651 Rear Sound Ordnance™ B-8P With the DEH-3300UB - Pioneer Electronics powering it all. I have recently decided to get an external 4-channel amp to power the fronts and rears. However I remember most amps being set--up differently when I was in the game years ago. i;e speaker level inputs. My head unit only has 1 set of pre-amps which I am currently using for the powered sub. As I've been looking around I see that what I am looking for(want) does not have any speaker level inputs but they do have RCA outputs. The question is can I run my pre-amps to a new 4-channel amp, and the run those outputs to my powered sub and get the desired outcome?