I run mine bridged into my 410XLT. I've noticed that the balance knob turns everything off when turned to the right, but increases gain a bit when turned to the left. Just wondering if ppl turn all the way to the left or leave it centered. Also wondering why it does this, since I assumed "bridged" meant bridging both amps, not just using one side, which this seems to point to, but i"m probably incorrect in my thinking. At first I just left it centered and discovered this difference almost by mistake. The manual doesnt say anything about it.