Hello....i'm new to this forum stuff...anyways I have fairly newish Ampeg SVT 810e cabinet (bought it from a friend but it still in great shape) and I just purchased an Ampeg SVT 4 pro head....and i'm having some troubles connecting the amp to my cab using the Neutrik speakon to 1/4" cable the head came with... what im trying to do it go from the mono/bridge speakon output on my amp to my cabinet and power ALL 8 speakers from 1 input on the cab..and not having to use 2 separtate inputs to power the upper and lower 4 speakers. now to my knowledge...that the mono/bridged speakon output from the head is combining both internal amplifiers into one....and i made sure the stereo/mono switch is pushed in to trigger that output as mono..... ...ok now...with my cabinet again to my knowledge...i can plug it into either the #2 inputs or even the #3 speakon inputs (depending on the cable), and it SHOULD play through all 8 speakers........ASLONG as nothing is plugged into #1 input...because #2 and #3 are used as the Mono Inputs... correct?? if everything that i have said IS actually correct, then i have a problem. ok BUT MY PROBLEM IS..... that i've tried going from my mono/bridge speakon output from my head to 1/4" input #2 plug (i've tried both plugins) on my cabinet....with NOTHING plugged into #1...and it the sound SHOULD go through all 8 speakers, but its not....it's only coming through the bottom 4 speakers....and i cant figure it out...its like its trying to use the cab in Dual mode, but the upper input isnt being used... ive asked someone with the SAME EXACT rig as i do...and hes using the mono/bridge speakon output to the #3 speakon input....and hes suggesting something is wrong with my cabinet..but i dont know what it could be, because its pretty newish and everything works perfectly if you use 2 separate cables to the 2 inputs to the upper and lower jacks...but i dont want to do that....i would much rather use the mono/bridge output. please any suggestions would help a bunch, i've been scratching my head about this a lot... thanks.