I know what I'm doing ....it corresponds with other peoples definitions of the terms used. I can't help if you use different terms. The only part I felt was wrong ...reffering to what I was doing was when you started to talk about bridging and inverting input ...which is not what I'm doing .....Ok so far ? I'm Biamping its like biwiring in that you need to biwire first, then take it a stage further as you power each drive unit using a single channel. If you need to invert a channel your bridging which is very different, and you can't power each drive unit seperately.