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Anonymous Posted on Jun 24, 2012

Blown speakers? Bought a Behringer GX212 at a garage sail. The seller told me that the speakers were blown. I plugged in a guitar an heard no sound from the speakers. Sound through headphones is perfect, ans all functions appear to be OK. Is it likely that both speakers blew, or is it more probable that something within the circuit went. I didn't pay so much that speaker replacement isn't out of the question.

  • Joe Patch
    Joe Patch Mar 16, 2014

    The speakers are blown if you have sound through the headphone jack. I've used that same crappy amp with the same jensen speakers. Speakers can be blown in 2 ways, the voice can get hot and warp which, will still work but rattle because the coil rubs the magnet inside as the cones try to move back and forth, OR they get too hot and burn out completely, severing the winding of the voice coil, which will give no sound at all, dead silence. It has sockets on the back for a left or right speaker cabinet to plug in, it would be that simple to plug another speaker in and see if it works.

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Anonymous

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  • Posted on Jun 24, 2012
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Usually with a blown speaker you will get sound but it sounds like there is an abundance of paper very loose on the speaker, so if there is no sound at all try taking the box apart if you are familiar with stuff like this and check to see if there are any loose wires or blown capacitors

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  • Anonymous Jun 25, 2012

    Josh,
    Thanks for the input. I've blown speakers, before, and experienced the sound you described. I don't know that I can correct the problem myself, but you have given me the confidence to avoid replacing the sprakers without further evaluation.
    Regards,
    Matt

  • Joe Patch
    Joe Patch Mar 08, 2013

    This amp comes factory with cheap 75 watt jensens. They are blown, no reason to waste time troubleshooting the amp for blown speakers.

  • Joe Patch
    Joe Patch Mar 16, 2014

    Speakers can be blown in 2 ways, the voice can get hot and warp which, will still work but rattle because the coil rubs the magnet inside as the cones try to move back and forth, OR they get too hot and burn out completely, severing the winding of the voice coil, which will give no sound at all, dead silence.

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  • Posted on Mar 08, 2013
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I had the same amp and the speakers blew, didn't make a sound. Speakers can warp the voice coil and rattle AND they can blow out completely. Before you tear the thing apart use common sense and try the simplest option first. If it plays through the headphone jack, it probably has output so connect a normal speaker to it or a cabinet, it has output jacks for cabs R+L. BECAUSE, it is already in stereo, there is no mechanism inside the headphone plug to change it. I also have a manual if you need it. Its .pdf and would have to email it to you.

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Michial Gueffroy

  • 1140 Answers
  • Posted on Oct 27, 2009

SOURCE: peavey minx 110 no sound from main speaker but

Inside the headphone jack is a built in switching mechanism. It is there to cut off the sound to the speaker when you are using headphones to practice quietly. For some reason or another it seems as if this is no longer working correctly. One of the causes of this can be bad solder joints on the circuit board where this jack is located. Another cause is a failure of the jack itself. If you are capable, Take the circuit board out and have a look. Hope this helps.

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Anonymous

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  • Posted on Jan 21, 2010

SOURCE: i have a line-6 spider 30 amp that started humming

output caps. dont beat up your amp. crazy
yostamplifier.com

Anonymous

  • 1851 Answers
  • Posted on May 25, 2011

SOURCE: Phonic S715 "15" 2way

This speaker is not an active one. This means that it hasn't integrated amplifier, so you need an external one. The cable from the amplifier goes to the speaker. Remove the woofer in order to get access at the inner parts and check these points:

  • In case that there is a crossover present there must be a burned out coil or capacitance
  • In case the cable from the female jacks at the back panel goes direct to the woofer, there must be the woofer destroyed or the cable disconnected. Check the cables, it's less expensive than to replace the woofer.
Post me back if there is a crossover in use or it is direct connected and any other points of interest you came up, in order to guide you further.
In case of a problem or clarification or further details needed, don't hesitate to post me a reply before rejecting my answer.
If you are satisfied, rate my solution with the "thumbs" or (even better) add a testimonial.

Thanks and regards
Please kindly rate this solution
Stelios
direct fixya link: http://www.fixya.com/users/technical114

Vito Vacirca Jr.

  • 140 Answers
  • Posted on May 27, 2011

SOURCE: No sound will come out

It sounds like to me that you blew the speaker. We here at Pro Line Music are Peavey dealers. If you can not check for continuity of the speaker you can bring or send it in. 215-736-8055

Anonymous

  • 1212 Answers
  • Posted on Feb 06, 2012

SOURCE: Behringer No Input Signal

Mic level in the windows control might be muted or off. The sound functions are a control panel iterm Or in Macs it is a CDEV.

Also check to make sure the program has that input enabled as well.

and make sure you start out with fresh batteries, double check where you have things plugged in, so you are not plugged into the worng port plug on the computer

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What would cause a buzz in speakers?

There are many causes of buzz, so it should be checked step by step :
- Bad connection on the input connector, or cord.
- Amplifier, basically have the block diagram like this. View image.25850665-l1qpqmriditabltrjczr2eku-2-0.jpg
If in one block damage, buzz can be heard.In the amplifier.
Generally occurs in the PSU and / or power amplifiers.
Fix it to the experts,because it requires a good knowledge of electronics.
Blown speaker cone, does not cause a buzz.
Short circuit along the wires supplying the audio, it will not cause any sound in the speakers, including the sound of music.
Try also, disconnect the input connector, whether the buzz is still audible. If after the input connector is removed, the buzz disappears, the possibility of buzz came from another device before the amplifier.
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My Behringer pmp2000 is now only giving an output through the tweeter horns of my speakers so the sound is very tinny. Any suggestions as to what might be wrong?

Your woofers are probably blown. To check plug a 1/4 inch or speakon into the speaker cabinet with the two bare wires exposed on the opposite end and touch with a 9volt flat battery if the driver doesn't move ir sound it's blown
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The problem with ceramic fuses is that you can't tell if it's blown unless you put a meter on both ends to check for continuity. You probably have a friend that has a multi-meter sitting in a drawer somewhere, or a trip to the local Radio Shack will tell you right away - as well as likely finding the correct value fuse. Replacing it with a ceramic is not as critical as matching the AMPERAGE of the fuse (the Behringer site might be helpful: http://www.behringer.com/EN/Support/Find-Answers-or-Ask-Behringer.aspx
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Step 1:

Hate to say it, but possibly a blown speaker. To check this, do the following -


Step 2:

Insert headphones into jack to verify for sound there.

Step 3:

Unplug unit and open rear panel to reveal speakers.

Step 4:

Remove leads from woofer.

Step 5:

Using a multimeter, set to OHM (horseshoe) to lowest setting.

Step 6:

Apply red(+) and black(-) to speaker leads. Meter should read at least 4-8 ohms of resistance.

Step 7:

If no reading, then voice coil is blown.

Step 8:

If no meter available to use, the use a 9 volt battery by applying direct connection to speaker leads in an off-and-on fashion - You should hear a "click" sound come from speaker. If no "click," then speaker is blown.

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If click is heard, and resistance on meter is correct, then the amp circuitry leading to the woofer may be blown = repair needed.
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Behringer No Input Signal

Mic level in the windows control might be muted or off. The sound functions are a control panel iterm Or in Macs it is a CDEV.

Also check to make sure the program has that input enabled as well.

and make sure you start out with fresh batteries, double check where you have things plugged in, so you are not plugged into the worng port plug on the computer
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I have a pmp6000 powered mixer. I was running an ipod in and sending out to one powered speaker. I heard a loud pop and smoke started pouring out of the mixer. I immediately stopped using it. This morning...

Cease using the mixer until it is repaired. One or both of the amps have blown. Further use MAY result in power supply damage. 1 to 6 switching power transistors will have blown and often a Zener diode or two. If the metering resistors smoked, there will be two small surface mounted transistors per channel blown wide open as well. These are all in the HCA2400 amplifier module.
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NO sound through the AMP even though the power light comes on

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