It has always been my knowledge that, when you are pumping your speakers, they should be pushing out. But on my GK Backline, they suck in . My rig is pretty Jimmyrigged until I get my 1001RB . And I had to split the speaker cable (into positive and negative) to run the cabinet from an old crown power amp, I have tried flipping this connection around (in case I got it backwards) but to no avail. Is it possibly bad wiring in the cabinet?