Hi all. I’ve searched the Control Booth info db and have found some valuable info but not quite what I'm looking for. I hope you can help. I'm designing the lighting and sound for ‘the Sound of Music’ being performed in an out door venue this summer. The site of the make shift amphitheater is in the back of a resort hotel. There is a grassy hillside for the audience to sit and a flat gravel area at the base of the hill where the stage will be built. The area does not have any electrical power. As I'm designing the lighting and sound I figure I'm going to need at least 120 amps @ 120v. 100 amps for lights and 20 for sound. There is a gazebo to one side of the seating area about 80 feet away which has both 240v and 120v outlets. There is also a large condo building about 100 feet behind the stage area. The resort maintenance manager told me that he has 2 construction breakout boxes (?) with 125 foot 240v cables. From what I understand, these construction boxes are designed when contractors are building a house and power has been brought to the property line. You plug the 240v cable to the electrical service and the other plugs in to the breakout box. The box then has several 20Amp 120v outlets and a 30A 240v outlet. I don’t know about earth ground…but, I'm using 2 arch trusses on the hillside and using guy-wires with steel stakes in the ground to hold the arches up, so I figure I can bolt a wire on a stake and use it for local earth ground…I don’t know if this would matter or not. So the manager says he can plug one cable into the gazebo 240v service and another to the condo building and give me 6- 20A 120v circuits. Has anyone out there worked on a similar electrical setup? We are using 6 DMX 4ch. dimmer packs. I'm wondering if the electrical setup might confuse the DMX signal? Any advice is appreciated.