PPX’s on a genny |
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scott_fury
Registered User Joined: 28 October 2012 Location: Bristol Status: Offline Points: 319 |
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Posted: 21 January 2019 at 9:54pm |
Hi,
I’m looking for some advice on running my little system off a generator. I currently have a 4-way setup that uses old Citronic PPX’s. I have... 1 - A 1600 which powers 2 x scoops on the A channel and 2 15” reflex kicks on the B channel, both at four ohms. 2 - A 900 which powers 12” mids in stereo. 3 - A 450 for the tweeter box on top. How feasible would it be to run this setup off a genny? I’m guessing unlikely....?! If not, what amps would anyone recommend I buy secondhand that would be better suited to a power supply from a diesel generator? Thanks, Scott.
Edited by scott_fury - 21 January 2019 at 9:55pm |
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GAZ.
Old Croc Joined: 16 January 2007 Location: Hertfordshire Status: Offline Points: 2433 |
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How big is your generator?
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100% Earth Moving Bass
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scott_fury
Registered User Joined: 28 October 2012 Location: Bristol Status: Offline Points: 319 |
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I don’t have one. The organiser is gonna hire one from Alide or HSS. I’m guessing the amps and other kit will dictate the size, but I don’t know if old PPX’s and diesel genny’s go well together? I know the 1600 can give a bit of kick when it turns on.
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GAZ.
Old Croc Joined: 16 January 2007 Location: Hertfordshire Status: Offline Points: 2433 |
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I run mine off generators as much as normal mains. Smallest I ever used was 10kva I think.
It coughed a little when you first turn the amps on but after that it’s fine. They don’t worry bigger generators at all. |
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100% Earth Moving Bass
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fat_brstd
Old Croc Joined: 23 August 2008 Location: Melbourne, OZ Status: Offline Points: 2125 |
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That lot will run fine off a small half decent genny with AVR. Stick a high power rating light on it (400w flood or similar) to give it some stable load and you will be laughing. A Honda EG series will be more than enough. I have run 4 scoops with a lot more powerful amps than you have off those many times and apart from running out of fuel I have never had an issue.
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scott_fury
Registered User Joined: 28 October 2012 Location: Bristol Status: Offline Points: 319 |
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That’s great, thanks for the words of advice.
The only info on the amps i can find is what is on the back, where it states the VA. I have a 900 kicking about at home which says it does 1500VA. I have no idea what the power factor is in these amps to get convert VA to W, so i’ll just add these three values together, the add 10% to get the size of the genny? Guessing somewhere around a 7kva would be about right? I’ll have decks, mixer and LMS as well, but imagine the current demand of these to be pretty low.
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fat_brstd
Old Croc Joined: 23 August 2008 Location: Melbourne, OZ Status: Offline Points: 2125 |
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People always over estimate current draw on small rigs. Honestly that lot will run fine off a 3.5KVa, get a 5KVa if you want to be really safe but for reference I ran 4 scoops off a 5Kva Honda EG many times with no issues with my old amps (EV P3000, Matrix XP5000, Matrix STR2400, Matrix UKP1300 & Behringer EP2500) + DSP + decks + 2 x QSC K12 Monitors many times with no issue.
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