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Repair woofer blown woofer

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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

Dec 15, 2014 | Behringer PMP2000 800 Watt 10 Channel...

2 Answers

Hi i have a set of bx8a and one of them when it is on the woofer pumps out uncontrollable even when no music is playing please help


If the woofer is motor boating....going in and out, like a flutter,
likely a power supply issue on the power amp board, in back of the speaker. This would need to be repaired. Since these are powered speakers, if for example, a power supply capacitor were bad,
it can do that. If under warrantee, find an authorized repair center near you. Contact manufacturer.
Hope this helps.

Nov 26, 2014 | M-Audio Bx8a Deluxe Power Studio Monitors...

1 Answer

Peavey problems


I assume you mean the Pr-12RX passive? That seems wrong to me, too. Put an ohm meter across the terminals of the horn driver and the woofer seperatly to see which, if either, is blown. If they're OK, look for a bad solder joint on the crossover.

Jul 28, 2014 | Peavey PR 12 Speaker PA Passive

1 Answer

No woofer sound from my K3000FX. Verified all cables and settings correct- but sound only comes from tweeter. What could it be?


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.

Step 9:

If click is heard, and resistance on meter is correct, then the amp circuitry leading to the woofer may be blown = repair needed.

Jan 18, 2013 | Behringer Ultratone K3000fx 300w Keyboard...

1 Answer

One of my MR8's has only its tweeter working, im guessing the bass driver might be blown? How can i test this though and be sure it is the bass driver and not just a simple electrical fault?


Open the unit and remove one wire from one of the woofer terminals and using an ohmmeter check the resistance between the terminals. It probably should be between 6 and 16 ohms... they don't give the specs on the speaker... if it is very high or infinite resistance, the voice coil is blown and you be re-coning or buying new speaker. These are close in speakers and intended for a small room for studio listening while mixing. If the speaker is OK, then the bass amp in the cabinet has a failure... pray, as that is cheaper to repair than a speaker.

Sep 22, 2011 | Mackie MR8 150W 8 Active Two-Way Studio...

1 Answer

After working great for over a year my speaker seems to only have treble with no base. Not sure what to do


This is a bi-amped speaker. That means it has a separate power amplifier driving the bass woofer and treble horn. They have a low-level electronic crossover to separate the frequencies to the appropriate speaker. The electronic crossover is the least likely to fail... so you need to do a test:
You will need to open the unit and using an ohmmeter check if the woofer speaker voice coil is open or has continuity...It should be around 6 to 16 ohms. If it is above that, the speaker itself is blown and will have to be replaced. If the speaker has continuity, then the bass amp has failed and will require repairing by person that is adept at electronic repair. Before opening the unit you MIGHT be able to diagnose whether the speaker itself is blown by seeing if the woofer generates a thump when power is turned on or off. If it does, then likely the speaker is OK and the problem is the amp, otherwise the tests above need to be done. Usually these plastic cabinets are held together with seveal scrwes from the back. Some are in :deep "wells" and will require a very long shaft phillips screwdriver... and they often are long screws that wear one out unscrewing them. A genlte pry after removing the screws will separate the back and the front.

Jul 16, 2011 | Samson Auro D412A Speaker PA Active

1 Answer

How do I replace a blown fuse on the Solo 6 be?


Unscrew the woofer, gently pull it out, follow the wires to the crossover, replace the fuse, reverse the process.

Jun 18, 2011 | Focal Solo6 Be 2 way Near field Shielded...

1 Answer

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
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direct fixya link: http://www.fixya.com/users/technical114

May 25, 2011 | Phonic S715 15 2Way PA Speaker

1 Answer

I think one of my zx4s is blown. it sounds a bit fuzzy while the other one is clear. I could not seem to get enough volume out of my PA and my guitar pedal (which I plug into stereo channel in desk) seemed...


Yes speakers can be repaired... you need to find if it is the woofer or tweeter or both of them.... DO check that it is not the amp channel by swapping sides. Unless you connected too large an amp it should not have damaged the speaker... First isolate if it is the highs or lows that is fuzzy... also check that some debis has not been knocked loose... grilles are notorious and labels for vibrating.

Jan 23, 2011 | ElectroVoice Ev Zx4 15" 2way Electro-voice...

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