Hopefully I did not give the impression that I know everything... if I did I apologize. I am merely stating that information can be freely had if one merely searches. They do not need to come on here and lie and ask a ton of unnecessary questions. They should only ask questions when the answer is something that is very difficult to find and they believe someone else may have personal experience with the problem... or clarification on a detail that was less than obvious. Asking general questions that are stickied here and everywhere else is just ridiculous. Also, several people linked this idiot to bcae1.com. He won't even go to look because he expects others to do the work for him and provide him with answers. Also, I might have misspoke. You cannot bridge subs. you bridge the amp. If you have a bridgeable 2 channel amp the 2 channels can be combined to put both channel's total output out to 1 channel instead of two. This is advantageous because the subs phase is then synchronized so instead of 2 channels and 2 signals making the subs move at different times, they would move at the same time in the same direction when bridged creating more pressure.