there are a few amp's that do this like the old school autotek stuff and some other's you dont understand it and i cant explain it lol but it is a mono amplifier! this is why it is called a 800.1, if i could explain the technology that brought this about i would lol
it's in the manual guy's ****! i really cant tell ya anymore then what i know and all i know is that it is bnib and work's perfecly and is very powerful.