EV Electro Voice ZLX-12P Powered Speakers making LOUD Static Noise

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If there were facility electrical problems, a Furman may not have helped rectify the situation - you may be replacing a Furman instead of a speaker - or a Furman and a speaker and/or other items. Keep in mind, the cheaper end of the Furman's are just a fancy power strip. Know what you're buying. A tester (as Sonic proposed) may have alerted you to a problem before you plugged anything in. Also, in an amplified system, the amp should be the last thing powered on and the first thing powered off. If an amp is on before other equipment, there is a potential that some equipment may send a signal down the line while powering on - and this signal could cause damage to an amp / speakers.
 
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I don't leave home without one. Actually, I have three in different places because I never know what I am going to plug in first. One is in my rack case, One in my AC wires bag, and one is in my adapter bag. I should point out that these testers cannot identify an electrical problem called a reverse bootleg ground. That requires a much more expensive tester.
 
... It turned out that the Venue had been making multiple electrical repairs, where their Staff, along with myself had been receiving electrical Shocks whenever we would touch some of their electrical items. I was told that re-wiring had to installed.
As far as the Speaker, I took the advice of Ittigger, Forbes, Rick, and the others and/to purchase(d) another EV Speaker.
... The Venue reimbursed me for the cost of the Speaker.

You OJT DJs have been a BIG help/assistance to me over the years. Thanks to All of You! - Curtiss
... correction, I had meant to say that the rewiring was installed multiple times by the owner's "family members/people", because the Owner wants "cheaper" repairs. This has happened often at this Venue (in Clearwater Beach) as I have had multiple Events there, where I have heard their Staff say same (being electrically shocked). ... From March 1st, I have passed on their inquiries. ... Good luck to the future DJs
 
If there were facility electrical problems, a Furman may not have helped rectify the situation - you may be replacing a Furman instead of a speaker - or a Furman and a speaker and/or other items. Keep in mind, the cheaper end of the Furman's are just a fancy power strip. Know what you're buying. A tester (as Sonic proposed) may have alerted you to a problem before you plugged anything in. Also, in an amplified system, the amp should be the last thing powered on and the first thing powered off. If an amp is on before other equipment, there is a potential that some equipment may send a signal down the line while powering on - and this signal could cause damage to an amp / speakers.
My experience with the Furman power conditioner is that if a surge of power is to be an issue the Furman will shut off.
 
You nailed it for me. Get a true professional to fix the wiring problem in that venue and be done. What the venue owner may need to look at is to charge enough to have an event there to help pay for the professional electrician to get the job done right.
 
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You nailed it for me. Get a true professional to fix the wiring problem in that venue and be done. What the venue owner may need to look at is to charge enough to have an event there to help pay for the professional electrician to get the job done right.

Is the like taking a van to a true pro repair shop?
 
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I certainly didn't take it to the shade tree mechanic! It was just time to let go which I did. I wasn't looking to take a short cut to save money like this venue owner.
Better check what you posted about you van issues. Must be somebody using your log in Mixxy?
One issue was oil on your gas excelerator. Gas pedal
 
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The speaker is still under warranty, so they're going to send a new amp control module at no cost. I put the control module from the good speaker into the bad speaker to determine that it was a control module issue. I did use that tester at the event site, and the outlet was fine. So just some freak event that messed up the speaker. Like a bump in the car jostled it enough to break something in the amp control panel maybe.
Thank you everyone for your comments and advice!
 
What I don't understand is why are they shipping the part that needs to be replaced instead of them paying for the shipping and fixing it themselves. Then ship it back to you or have to take it to a repair shop that's authorized by them. Have them fix it on their dime and you pick it up.
 
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What I don't understand is why are they shipping the part that needs to be replaced instead of them paying for the shipping and fixing it themselves. Then ship it back to you or have to take it to a repair shop that's authorized by them. Have them fix it on their dime and you pick it up.
It actually didn't cost me anything, sorry if I wasn't clear. They emailed me a UPS label to send it to them for repairs. They originally emailed me a label to send the entire 55lb speaker back to them. But I offered to do a quick test of the amp control module, and just send that much smaller part back to them. So after I determined it was the amp control, they emailed another label for that 1lb part.
 
It actually didn't cost me anything, sorry if I wasn't clear. They emailed me a UPS label to send it to them for repairs. They originally emailed me a label to send the entire 55lb speaker back to them. But I offered to do a quick test of the amp control module, and just send that much smaller part back to them. So after I determined it was the amp control, they emailed another label for that 1lb part.
I didn't make that post to cause harm. I was just figuring let them fix it instead of you because if something goes wrong with you fixing that would void the warranty.
 
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I didn't make that post to cause harm. I was just figuring let them fix it instead of you because if something goes wrong with you fixing that would void the warranty.
That makes sense. I just didn't want to send the entire speaker back in fear of it getting damaged. The control module panel just unscrews from the back of the speaker, and it only has two connectors to remove and plug into the new control panel. So very easy.
 
That makes sense. I just didn't want to send the entire speaker back in fear of it getting damaged. The control module panel just unscrews from the back of the speaker, and it only has two connectors to remove and plug into the new control panel. So very easy.

I had the predecessor to those speakers, which also had an issue with the control board (they would overheat and shutdown). I posted about it in a couple of online forums and EV contacted me and sent a replacement board which fixed the problem. I have to say, that impressed me greatly with the company. I'm glad they're making it right by you as well.
 
What I find is certain companies have a reputation to upkeep. So they will try to keep customers happy as much as they can. Those low budget companies that don't make high quality gear may or may not be concerned about doing right by a customer. The other companies that sell quickly gear want customers to keep coming back.
 
What I find is certain companies have a reputation to upkeep. So they will try to keep customers happy as much as they can. Those low budget companies that don't make high quality gear may or may not be concerned about doing right by a customer. The other companies that sell quickly gear want customers to keep coming back.
Sorry my bad. I meant quality gear. Lol.