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5.2 Genny enough for all this? |
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AcidTechnoWahWah 
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Joined: 26 March 2015 Location: United Kingdom Status: Offline Points: 24 |
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 Topic: 5.2 Genny enough for all this?Posted: 02 September 2015 at 4:07pm |
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Basically me and few mates are putting a little shindig on
Was wondering if a 5.2 genny would run all this: 2 2000watt usbs 2 around 1000watt wbins 3 cerwin vega v152s decks and lights |
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mini-mad
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Joined: 13 July 2012 Location: london Status: Offline Points: 6903 |
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Posted: 02 September 2015 at 4:09pm |
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No.
or yes, but badly. |
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If it sounds like a gorilla is trying to escape, turn it down.
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shagnasty
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Joined: 30 July 2007 Location: Guildford, UK Status: Offline Points: 7685 |
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Posted: 02 September 2015 at 4:31pm |
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Do the sums 4000+2000+say 600W+100W for DJ tatt + lamps that-s 6K7W in speaker power, your amps aren't 100% efficient so assume you need a supply of about 1.5x the cab power min.
I never use anything less than 25KVA for PA, but if you must, get a genset that at least equals the badge power of you amps....
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b grade
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Joined: 05 October 2012 Location: Portland OR USA Status: Offline Points: 1337 |
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Posted: 02 September 2015 at 5:46pm |
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Any generator will power it all up and allow for some noise at a low level. Where it will fail is when you turn up the volume loud and the generator is overwhelmed on every bass line. It sounds horrible. You will have to then turn off all of the lights, and also turn the volume down until the horribleness is inaudible, and know that the generator is still being stressed beyond spec. Its not safe for your gear or the generator.
Don't let the generator be your limiting factor. Also, I always try to use a separate generator or at least a separate circuit for lights. Some lights cause noise in the sound gear.
Edited by b grade - 02 September 2015 at 5:47pm |
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cravings
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Joined: 30 January 2007 Location: Ireland Status: Offline Points: 7442 |
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Posted: 02 September 2015 at 6:44pm |
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what amps you're using would be more of a consideration than what speakers.
decent small (about 6kva diesel) can do ok on a usable system for a party if that's all you can get.. but i wouldn't go any loweror mess about with little petrol ones. and as others have said a 15kva or so can be hired for not much more. |
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audiomik
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Joined: 06 April 2010 Location: Bath, UK Status: Offline Points: 2962 |
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Posted: 02 September 2015 at 11:36pm |
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Not yet included is the use of a static Load, say four 500W Par Cans which are left on for the full time that the Gen-set is running.
Plus the very necessary AVR so that you have a good chance of having a fairly stable supply voltage... See other threads on the same topic on here for more information. Hope this assists and good luck with your event whilst hoping that you don't get any equipment failures Mik |
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Warning! May contain Nuts
plus springs, washers, screws, etc, etc. |
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valve head777
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Joined: 27 July 2012 Location: East Sussex Status: Offline Points: 1781 |
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Posted: 03 September 2015 at 1:37pm |
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generators that stall take out tx's in my experience
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Freedom of choice, choice of freedom.
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SchematicSounds
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Posted: 08 September 2015 at 10:24am |
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It's not about the wattage of your drivers as such, it's about the power draw from the power amplifiers. Look at the spec sheet of your amplifiers and see what amps (A) they do. You multiply the amps to the voltage to work out the kVA (kilovolts to amps). So A * V (240v is standard for UK). This will work out the maximum power that the amplifiers can draw out. For example my TA2400 is 13A therefore 13A * 240v = 3120kVA.
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matty w
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Joined: 27 August 2008 Status: Offline Points: 798 |
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Posted: 16 September 2015 at 6:51am |
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Iv generally found amplifiers clip lights to eluminate early if geni isn't powerful enough .
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Black to black , red to red , blue to bits ....
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