Quoted from LTG:
http://www.pinballnews.com/shows/tpf2014/index3.html About half way down the page. Big transformer, switching power supply, and a row of bridge rectifiers on a heat sink on the floor.
Looks pretty impressive for power to me.
LTG : )™
Thanks Lloyd. I wish they had gotten a closer picture but it does look very nice. I suspected a switching power supply would be part of the equation but I was curious where they were getting their higher voltages, and now we know.