Auto bias is good, never have to worry about it, only down side is your loose a couple of watts of power.
My 805B monos do not have the bias pot or the aux plug hole to plug in a meter. I've seen no literature that talks about an autobiasing amp.
The previous owner (and original owner, I think) said the amps were an upgraded autobiasing set of monos.
I've reached out to Cary about this and no response, hence the question here.