i've got 18" 19ov2 elemental designs subwoofer, - AVS Forum
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post #1 of 10 Old 11-01-2012, 11:49 PM - Thread Starter
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i've got an 18" 19ov2 ED subwoofer, i had a stereo shop install it in my car. upon picking my car up they informed me that one of my coils were burned out. i was hoping someone can help me out with this problem. i just want to know if this is a common problem, if it can be replaced easily,where can i get replacement coil at and how do i tell if it is really burned out? i had what he claimed to be an experienced stereo specialist listen to it and he also said he could tell it was burned out. i would like to get information on where i can get a replacement coil and around how much it would cost, money is not an issue but i would like honest information. i've looked on ED website and i can not find replacement coils, unless i go back to a stereo shop, which is an option but im just not trusting their advice. thanks for checking my thread out. I WOULD LIKE HELP PLEASE!
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post #2 of 10 Old 11-03-2012, 11:00 AM
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So wait a minute. You had a new driver installed in your car, and this shop delivers it to you already blown? The way you wrote your post, it sounds like you just had it installed, then they damaged it, then they give it to you...

BTW, if it's a dual voice coil (VC) driver, it is just two windings on the same bobbin. Essentially, to replace one, you have to replace both. And it's typically not a user replaceable part. Generally what happens is that the entire surround, cone and VC gets replaced as one unit, not just the VC by itself.

Also, I'm no expert on blown drivers (as I only blew one years ago as a kid), I do not believe that you can "hear" a blown coil. Either it works or or it doesn't. If the winding is burnt, it will make no sound at all. If it's a dual VC, then one will be silent and the other will play like normal. The other thing could be that the driver was asked to travel too far and/or beyond its Xmax, causing it to bottom out or stretch the entire suspension system out of alignment in which case it wouldn't matter which winding received a signal. Both windings would cause the cone to move, and if the bobbin/suspension system is damaged, you would hear the bobbin rubbing/scratching on the side of the pole piece or gap.


In either case, if this is a brand new driver that you have not even used yet, and the clowns at that audio shop blew the driver, it's their responsibility to replace that driver on their dime, NOT yours.

This is one of the many reasons why I always installed my own systems. I would never trust those punks with my cars/equipment.

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post #3 of 10 Old 11-03-2012, 11:26 AM - Thread Starter
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it wasnt new, i had them install it and they informed me a coil was burned out, the speaker works fine, it pounds the **** out of my car, but i think only one set of terminals is connected to the amp so could that be a problem? and i had some one listen to it and he said he could 'hear' that its burned out, personally i dont think the coil is burned out because i have hooked it up myself and it worked fine but i just expected since an audio shop told me they could be trusted but i have now learned that was not true, possibly jelousy? i do not know but once i take it out of the car and hook it up my self i will be able to tell if a coil is burned out? if i hook the terminals up seperatly?
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post #4 of 10 Old 11-03-2012, 11:28 AM - Thread Starter
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and by the way,i got the speaker from my step dad he wouldnt know if it was burned out or anything but i dont think he would waste his time getting me something that didnt work either he got it from his friend for a reasonable price too.
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post #5 of 10 Old 11-03-2012, 11:44 AM
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Like I said earlier, you can't hear a burnt out coil. Either it works or it doesn't. Whoever you had listen to it and tell you that, don't take any advice from them please. No offence if it's a friend, just saying...

If the sub is up and running fine right now in your car, swap the wires to the other terminals and see what happens. If the winding on those terminals are shot, it will just shut the amp down or at worse, pop a fuse, OR do absolutely nothing. It could be an open circuit or a dead short, but neither should damage the amp as long as it has the proper protection circuits which I'm sure it does.

If it operates and sounds just like it did on the other terminals, then you have a perfectly working driver and stupid idiots at that shop that don't know what they're doing or talking about.



What's the impedance of the VC's? Are they dual 8 ohm, dual 4 ohm, dual 2 ohm? What's the efficiency of it? Sorry, but I can't find any decent, matching specs of this unit online.

What is your amp and what is it capable of handling in mono mode? Is it stable down to 4 ohms mono, 2 ohms, 1 ohm, 0.5 ohm? Is it even running in mono mode?

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post #6 of 10 Old 02-25-2013, 06:55 PM - Thread Starter
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well for all i know is the amp is 2100 watts i cant remember the name at this moment. i did know that if i switched the terminals i would know it worked but the speaker barely fit in my trunk so im not able to work with it at all. just this moment i was on my way running errands and the speaker made a rumbling and shut down, i checked wireing, fuses,and power everything seemed fine but the speaker just wont work. any oppinions or advice is honored at this point. im going to take it back to the shop and have them remove it from my trunk so i can have access to info on it. like i said any advice or oppinions are greatly appreciated fellas.
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post #7 of 10 Old 03-22-2013, 12:56 AM - Thread Starter
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well ive come to realize its not 2100 watt amp its only a 200 watt amp. ive found speaker repair services but they want to switch out magnets and all kinds of other stuff im not sure about. i figure i ought to just leave it alone for a while. ive got two 12" kicker c comps in now hooked to the 200 watt arc audio amp and its doing good, ive come across a kac8105d amp im fixing to put in in tarro i would like some feed back on the kac amp so let me know how you think it will perform on the two kicker subs.
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post #8 of 10 Old 03-22-2013, 07:47 AM
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Quote:
Originally Posted by Wayne Sumner View Post

ive found speaker repair services but they want to switch out magnets and all kinds of other stuff im not sure about.
If the coil is blown, then you really need a full recone. Fix My Speaker dot com can do it. Here's one he rebuilt - http://www.caraudioclassifieds.org/forum/fix-my-speaker/137425-ed-19ov2-brandon.html

If you have a multi-meter, you remove the driver and disconnect it from the amp. Check the resistance of each coil. For dual 2 ohm sub, each coil will read about 1.7 to 1.9 ohms. For a dual 4 ohm sub, each coil will read anywhere from 2.5 to 3.5 ohms. You can look up the exact numbers at the old eD site.
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post #9 of 10 Old 03-23-2013, 04:32 PM - Thread Starter
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wow, fixmyspeaker is one of the sites i found but i also found a guy in my local area that does it but he was talking about changing magnets and other stuff i didnt know about. i had communicated with fix my speaker and they said they can do it but im afraid shipping it will be more than getting it repaired and i will eventually get it tepaired im just exploring options. so fix my speaker is most likely the way to go?
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post #10 of 10 Old 03-25-2013, 10:31 AM
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Can David build you a recone kit? Here's a set of pictures of the kit he built for me for a set of 12's - http://s3.photobucket.com/user/rlj5242/library/PSI%2012%20Sub One of the 12's is currently in my wife's car on a Powerbass ASA-1000D

Also, the pictures below are of a sub that he custom built for my home theater. It's designed to work in a 3 cubic foot box powered by a Behringer EP-4000.



Quote:
so fix my speaker is most likely the way to go?
I own the 3 subs above from PSI / FMS as well as an 18" based on a TC Sound 3HP motor structure. I've also been to his shop and seen his work. During the repair of a Digital Designs sub, he explained the weak spots as he tore down the sub and how his repair would eliminate them. I've also auditioned his own PSI branded subs. There's only a handful of subs I will pay for and either of David's companies are on that list.
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