Question about JBL EON-1500 Main / Stereo Speaker

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Hi I am a solo female vocalist and I have a pair of jbl two way eon 10s speakers which are about 10 years old now. But have looked after theem and they have served me well. But a few weeks ago i heard all i can describe as a loud crack come from one of them or both. My amp was on but my mic was not even plugged in, so why this happened I dont know. all i do know is the sound has not been the same since. It seems very tinny or toppy on the music and my voice. I am getting feedback on the bass as well as the top and have had to take the top of the music and my voice to try and prevent the feedback.I am also getting feedback on the bass which i have never had before. i use a shure sm58 beta radio mic and it has always been great for getting no feedback. I havent changed any of my settings in years until now. The sound seems to have lost its power loudness and its smoothness, the nice blend of voice and music seems to have gone and no matter what i do I cant get it right. i sound like i am singing in a tin bucket lo! I am at a loss? I have had the desk checked out by an engineer and serviced and he says it is fine no probs there. I have changed all my cables incase one is damaged inside. The only thing I can think of it must be the speakers, is it possible for something to blow in them that i cann ot see visibly. I am sorry i am not a tech head so bear with me.I have a gig tonight and dont know what i am gonna do so anyone please help!

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It sounds like the Power Amplifier shot a big jolt of DC Voltage to the Speakers and opened the Woofers. If this was the case the speakers would read open and not the 8 ohms they should.
If this happened than your horns will be the only thing working and this would give you a tin bucket voice. Have your Engineer check your Amplifier................. Larry

Posted on Oct 09, 2010

Testimonial: "what an ace chap really knows his stuff thankyou"

  • 1 more comment 
  • madmaria42
    madmaria42 Oct 09, 2010

    hi Larry thank you so much for that advice like I say I am not a tech head and i dont understand properly the maths an the way it all comes together. like i say i am a singer and the only thing i have to rely on is my ears, and you just know even the slightest change in the soud wwether it be bass, mid, top.
    So just to try and rule out other things I will just add to the above just incase it could be somthing else. my amp is a spirit soundcraft powerstation 600 with lexicon effects. the engineer said when he was checking everything that the effects board may be on its way out is it possible that the effects would affect the speakers in this way? if that was the case then i dont understand how it would affect the music. i kept telling everyone but they wont listen that the fault lies in the speakers but (and I dont want to sound like i hate men because I dont) but all i got back fromthe engineer and the guy who does my sound was a laugh and no its not the speakers. I told them to check they said that it is a closed unit and they couldnt get toanything and it could be the voice coil or the crossover, that is where they lost me. I need to have things described in simple terms so i understand (for instance a wiggly bit of metal is a coil, do you get me, oh i sound like a real dumbo sorry).
    The problem at first was intermitttent it would sound ok then it wouldnt but now it is like it all the time. I thought maybe there is a connection in the speaker somewhere that had broken and sometimes connected and then with vibration disconnected itself somehow and now it has completely broke hence it sounding **** all the time. Could it be a faulty cable or speakon connector do you think? would that affect the sound? I am just trying to rulethings out to make sure i get to the problem and quickly as i say i have a gig tonite and it looks like i will have to sort thisout by myselft because the sound engineer is otherwise engaged in otherwords he thinks i am taking the p--s by doubting his diagnosis. because he says it sounds fine all i can say is he must be deaf! The top on the music and my voice isridiculous seeing as I have a voice similar to cher really deep. I know it aint right when i do a ttttt into the mic and it sounds really tttttttt no roundness do you know what i mean,lol if you can make heador tail of all that then anymore advice would be greatly appreciated. thankyuo again soo much for your help xmaria
    I even contacted shure and they said it could be the mic that is faulty, but i cant see that being the problem either because how would it affect the music.

  • madmaria42
    madmaria42 Oct 09, 2010

    I did put thankyou on the las t post but it must have cut it off. I really appreciate your help and understanding thanks again maria.

  • madmaria42
    madmaria42 Oct 09, 2010

    Sorry i forgot to say if it is the horns then how do i go about fixing them ??? derr!!

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