I finally got one of these SP20's ordered up! I hope it lives up to Philip's praises

I was hoping that I had a single PSU to run it, but now I am not so sure? I have several LEPA 1600's sitting around and some Corsair 1200AXi's. I suppose maybe dual CX750's would do the trick.
I got my SP20 last month and have been running it on 2 CX750M's. Let me know if you want me to try any settings with it before deciding which power supply you are going to go with.
We're getting the SP20 tomorrow and I plan on using 2 CX750M's as well. Will it power an SP20 at the stock rate? What are the default settings of the miner? I'm assuming the full 1600-1650 GH/s. Power consumption is not a problem we live in an all inclusive apt

. I would like to try and get the most I can SAFELY out of the machine if that means underclocking it so it runs at say 1500 GH/s that's perfectly fine. What is the max safe setting of watts per channel? 240? What about voltage? What's the default?
I think you can only tell when you get those into your hands and start running them.