It probably is supposed to use a mono plug. Is the cord homemade? I'm guessing maybe the polarity is not correct.Usually the segment of connector closest to the plug is ground (-) and the tip is positive (+). Good luck
Help with SF Line1 relay trigger
I can't figure this out, I have my Line 1 going to my Monster 5100 relay in using a mono mini plug cord. The Line 1 isn't triggering the Monster to turn on. I have checked the voltage coming from the Line 1's relay out and believe it is pumping juice (I have a very cheap multimeter and get a wide variety of results) and have no reason to believe the Monster isn't functioning properly (its brand new). Any suggestions? Would a stereo mini plug make a difference?