ok, I just re-read your post above, so your saying your pulling 60 Watt at the wall, and getting 80% efficiency at the power brick? 60Watt -> 48watt (225Mhz)?
Close. The power brick is 72 watt at 6 amp and yeah pulling 58.4 watts per pod at 225Mhz. The 750 would run at a better efficiency for sure. I'm at 123 watt for 2 pods on a 150 watt supply but it's getting too warm so I might go higher. Good Luck and let us know how it works out.