So my buddy gave me a box w/ 2 subs and an amp on it to add to my exisiting system. All I did was Y-split off some RCA's from my speaker amp and run them into this new amp. I am wondering the best way to configure this setup I looked up the info on the amp powering the subs (2 JBL 12's), its a Kenwood KAC-729S http://www.crutchfield.com/S-zBPpok...p?print=Y&g=100&id=detailed_info&i=113KAC729S Currently, I have it with the LP filter on, Stereo mode, and Input Sens all the way down. It still gets pretty damn loud! I am trying to figure out the best way to tune this. It looks like my friend has both subs wired up to their own channel, Is there a reason to wire subs up like that? From what Ive gleaned from you guys I figure they should be in bridged mode if they are just going to providing lows anyway. What are your thoughts on this?