Sep 07, 2004 08:53 am Hello, welcome to HRC.
It is presumably the voice coil that is going to hell or you are pushing more power into the speaker than it is able to handle. But then, "crackling" isn't really a lot go on...
Speakers are crackling....
Posted on Sep 07, 2004 08:51 am
David Bowley
Member Since: Sep 07, 2004
Well I'm nowhere near as goodat this business as you guys are, but I'm trying. Got a quick question about a speaker, and I don't really know the proper name for it, it's a big thing, a stage speaker, I can get more specifics if needed.
Basically the problem is it started crackling randomly one day, and then the day after it had stopped. It screwed things up for me soI'm hoping it doesn't happen again. I just wondered what I need to be looking into if it comes back?
It's not the desk causing the problem, as it does it when all the channels are muted, well it's not the channels anyay, it could be to do with something else going out the desk I suppose. The noise isn't healthy either, it's a big bad, loud, disturbing and harsh sound, like something is broken inside the speaker maybe.
I think I have to determine which bit of equipment is broken, does anyone have any advice on this? I need to test thespeaker on it's own somehow aswell as the mixer, hmmm, confusing. This has got me a little bit stressed out as I'm doing live PA for an outside event and I need those speakers.
Also, as an alternative in the middle of the crisis I had to take a monitor for the musicians and use it to give music to the rest of the congregation, it was loud enough buti don't feel right using monitor speakers, but it's what I'm gonna be doing if I odn't get em fixed. Say I did use monitor speakers temperarily, would it work?
Oh, and hello, I'm new here in case no one has noticed.
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Sep 07, 2004 08:53 am Hello, welcome to HRC.
It is presumably the voice coil that is going to hell or you are pushing more power into the speaker than it is able to handle. But then, "crackling" isn't really a lot go on...
Sep 07, 2004 08:57 am Well, it's like the sound of a mic falling to the ground, mixed in with a russling papaer sound, as well as a popping sound.
Hmmm, now this sounds really stupid but...what's a voice coil? And how much is it to replace, and can I do it or is a hardware engineer's job?
I think we need to start buying equipment from real vendors rather than second hand as everytihng is breaking. The sax mic went the other night and if you tap the mixer in a certain place then the it sends out a massive bang to the speakers. Dear me, it's all about the money though.
Sep 07, 2004 09:00 am it's the piece that pushed the cone in and out. It has limited travel ability, the plouder you turn it up the farther it has to travel back and forth to make the sound louder.
It sounds like either you are trying to make it travel to far or it's breaking...
The best answer is to buy a new speaker to screw into the cabinet.
Sep 07, 2004 09:03 am Ok, thanks for the advice. If it happens again I'll get the other tech guy to look when he gets back, and if he can't fix it but knows what it is then we can get it sorted. I'll mention the voice coil thing to him and see what he says.
It might end up us taking it to a repair shop to et it looked at, oh well, I tihnk it would be best that attempting to fix it if I odn't really know what I'm doing.
Sep 07, 2004 12:55 pm also check out the power circuit that the speaker/amp is plugged in to. grounding problems can cause weird noises to come thru your system. i think that radio shack sells an instrument that you can test the voltage/current/proper ground with, and furman sells stuff to regulate the power supply in case that is actually the problem.
Sep 07, 2004 12:59 pm Thanks, will lookinto that too. We've only ever had this problem once before so I hope it goes away.
Sep 13, 2004 08:35 am For the time being the speakers are semi-working. We'll be taking them to a proffessional repair shop soon I think, it sounds like it's had it's day. Anything coming out of it above a certain volume level seems to distort, and its twin seems to handl the levels perfectly well, thanks for all the advice you guys gave.
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