Members Jealousblues Posted October 22, 2013 Members Share Posted October 22, 2013 We are thinking of expanding our PA for some of the larger gigs we do.I want to know how much power do we need to ask for at the venue to power this rig.4 JBL SRX 7284 JBL PRX 7252 JBL PRX 5252 JBL PRX 515 We have led lights and our board. No live guitar amps on stage. We have a couple keyboards and electronic drums. Im not sure how all of that enters into the equation but Im guessing its not much compared to PA. Generally at shows where we would bring this PA they have a power box they drop on stage. Not saying this is what we would always use its just the absolute maximum we could use. Link to comment Share on other sites More sharing options...
Members agedhorse Posted October 22, 2013 Members Share Posted October 22, 2013 I would expect that 50 amps, 120/240V, 1 phase would be a good choice. Link to comment Share on other sites More sharing options...
Members RoadRanger Posted October 22, 2013 Members Share Posted October 22, 2013 agedhorse wrote: I would expect that 50 amps, 120/240V, 1 phase would be a good choice. He implied that he doesn't own a distro (or even know what one is) so he'd need one too, something like this:http://www.peavey.com/products/index.cfm/item/964/117526/distro Link to comment Share on other sites More sharing options...
Members Jealousblues Posted October 22, 2013 Author Members Share Posted October 22, 2013 I will look into the Peavey distro box. Someone posted it here before and I know ive thought about it.Just looking at it it is awesome.Dumb question, this has to be plugged into a 50 amp outlet?How often do you run into those in the rooms you play? Usually we are at a hotel ballroom and many times I dont see one but maybe im not looking in the right spot usually at shows like this they have some electricians on hand and they run us one of those large power cubes with outlets on all four sides/edisonbox/disrto. like thishttp://www.onsite-energy.com/Distro/edisonbox.htmlsometimes hotels will have one as well, which is nice. Im assuming that will work easily^ other times we currently ask for 3 dedicated 20 amp circuits for our band. We play lots of country clubs and places like that where they dont have great power options.Would this work as well (3 dedicated 20 amps)? Link to comment Share on other sites More sharing options...
Members jlb Posted October 22, 2013 Members Share Posted October 22, 2013 The Peavey Distro plug is a NEMA14-50. Most commercial business have these types of outlets. All the larger venues I work have the NEM 14-50 outlet available near or on the stage. You should be fine running off 3-4 20amp outlets. The distro makes it nice because it cuts down on the use of extension cord runs. Link to comment Share on other sites More sharing options...
Members Tomm Williams Posted October 24, 2013 Members Share Posted October 24, 2013 Wow. I've had issues with a single fog machine on one 15 amp circuit. Link to comment Share on other sites More sharing options...
Members wesg Posted October 24, 2013 Members Share Posted October 24, 2013 Do you guys ever measure your equipment's current draw? I used to use a short extension cord I made up with the conductors separated so that I could get a clamp-on ammeter in there. Now I use one of those Kill-A-Watt things. FWIW I try to never exceed 80% of a circuit for continuous operation, i.e. no more than 12A on a 15A circuit. Does anybody know the derating formula for loads with oddball power factor? Link to comment Share on other sites More sharing options...
Members Vito Corleone Posted October 25, 2013 Members Share Posted October 25, 2013 Jealousblues wrote: other times we currently ask for 3 dedicated 20 amp circuits for our band. We play lots of country clubs and places like that where they dont have great power options. Would this work as well (3 dedicated 20 amps)? My band runs a PRX (512s over 618XLFs) system. Small guitar amp. No bass or keyboard amp. (keyboard rig is 3 boards and a guitar processor). 12 LED lights split on either side of the stage and 6 traditional PAR 56s across the back. PA mixer. A few other misc. items.We always ask for 3 dedicated 20 amp circuits which is plenty. We usually run the lights on one circuit and then run stage right/stage left on the other. If we only have two circuits to work with, we will split the lights stage right/stage left as well. 90% of the time this works fine. Sometimes we find it's too much so the backlighting of old PAR cans in the first thing to go. If you're playing old country clubs and the like (which we often do as well), you'll find the power situation is hit and miss at best. Good luck finding anyone who even knows which outlets go to which circuits (even though you've specifically stated your needs in the contract and mentioned them several times in communications before the gig. "Our engineer doesn't work on Saturdays...." ) let alone whether they are 15A or 20A or something else. And if it's an older building....well, who knows.The distro box is a great idea, but has its limitations as well. Most notably that there's often not a suitble outlet for one anywhere near the stage area and running power cables back to the kitchen across where the food servers need to enter/exit isn't always a good option either. Link to comment Share on other sites More sharing options...
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