it appears from the manual that the “parallel adapter” 8800 cable which is the only listed way to double current… is centre positive. And there doesn’t seem to be any way to either (i) double current for centre negative, or (ii) purchase something that could invert centre positive into negative.
Hello Unevenhightide, the parallel 8800 adapter cable is agnostic to the polarity. If you need to power a center-negative device, simply use a black Type 1 Flex cable. If you were to use a green Type 4 Flex Cable in combination with the 8800 adapter then the polarity switches to center-positive.
