There is a 2-1 in the works already. It will likely end up being about 450 maybe 500 watts per side. The heat and current limitations are the issue there. I think I have a work around for that I will be playing with in the coming few months but not yet sure of monetary feasibility as of yet.

At this time I do not have a 4-1 planned. The single point of failure issue weighs heavy. Not saying it is a bad thing but to me it has exceeded the point of diminishing return.