What I am wondering is exactly how they make the pump act, does it ramp the pump down and back up like a tunze controller? I'd be interested in seeing how effective the controller is. The Tunze powerheads are ran off of DC power, while the Seios run off of AC which is MUCH harder to ramp up and down. I'm going to be eagerly waiting to see exactly how much these controllers are, how effective they are, and what the power rating is on its two outputs (so we can tell if you can simply split the two outputs to 4 different powerheads)