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Behringer Truth B2031A powered monitor speaker - radio interference in left speaker

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A well know problem to the Behringer Truth B2031A speakers is radio interference and noise. I had the same problem with mine and found a solution on a forum!

If you open the speakers, you'll see a cable from the main board that runs to the 2 lights at the front (on/limit LED's). It functions as an antenna... Disconnect it and your speakers are silent, finally. (OK no leds, but I can live with that).

Posted on Jan 27, 2011

  • ZaD MoFo Feb 10, 2011

    Great solution! While not quieting my monitors completely, this tip pointed me toward a complete solution: Shielded wiring for the LED wiring and a screening cover made with sheet metal. If you look at the PCB they are mounting holes for what should had be a shield. (a leftover from Behringer...)
    Greetings!

  • stantonalexa Feb 23, 2011

    ZaD MoFo could you elaborate on this screening cover? Where exactly do you put it, and what exactly should it be shaped like? thanks

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Posted on Jan 02, 2017

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Beringer truth b2031a does not power up


Check and replace damaged component/s at its main power supply section. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts. Do asearch by type in the brand name of your device at its search box.
http://electronicshelponline.blogspot.com/

Jul 03, 2014 | Behringer Audio Players & Recorders

1 Answer

Behringer Truth B2031A major hum in both monitors


Could be when the power outage the speaker was blown a little. If not check the wire connections.

Sep 10, 2013 | Audio Players & Recorders

1 Answer

Where can I find the entire circuit board for TRUTH B2031A


Unfortunately Behringer equipment is hard to get parts for generically. You may be able to order the whole amp from behringer but I doubt it. I have had lots of problems repairing them for that reason and I will no longer use any of their stuff. The IC's could be repaired but can't find any record or crossover to any of their output transistors. It appears they are custom made for Behringer. Sorry, I can't help any more than that.

Mar 28, 2013 | Behringer B2031a Truth Active Monitors

1 Answer

The speakers were damaged by rates


www.soundmastersdirect.co.uk sell behringer spare parts. give them a call.

Mar 07, 2012 | Behringer Truth B2031a 225-watt Powered...

1 Answer

The fuse blows seconds after the unit is switched on. No fatal accident occurred to cause the problem.


One of the power amps has failed. Take unit in for servicing unless you are electronically adept.

Here is schematic:

http://elektrotanya.com/behringer_b2031.pdf/download.html

Scroll down to "get manual" and click on that to download. Ignore other download links.

The unit uses LM3886 power amp chips. Likely one has shorted. Use a 40 watt light bulb in series with the input power cord to act as a resetable fuse to avoid wasting fuses during troubleshooting and repair.

Jun 24, 2011 | Behringer Truth B2031a 225-watt Powered...

1 Answer

Just bought a pair of used Beringers Truth b2031a monitors. one of which doesnt work anymore at all... opened the back of it (took those 6 screws out) and saw that the power connection has been cut of......


Here is the service manual schematics for your speakers:

http://elektrotanya.com/behringer_b2031.pdf/download.html

Scroll doen to "get manual" and click on it to download the manual... Do not click on the other downloads at the site, they are for viewers you don't need.

Take the schematics to a COMPETENT electronic service technician to get units repaired. You obviously bought units that had been hacked before...

Jun 21, 2011 | Behringer Truth B2031a 225-watt Powered...

2 Answers

Where can i get a behringer b2031a schematic


i found legit looking schematics here...the pdf includes many revisions, adding to their credibility...haven't put them to the test...
http://www.electronica-pt.com/index.php/component/option,com_remository/Itemid,34/func,startdown/id,16026/

Feb 14, 2011 | Behringer B3031A 2-Way Active Studio...

1 Answer

I have a Behringer Truth B2030A speaker. Today, when I switched it on, the power LED did not light up, and I am getting nothing from it.


A common problem is the power cord NOT being fully seated... push it in hard. Beyond that, take it in for repair.

Feb 01, 2011 | Behringer New! Behringer Truth B2030a...

1 Answer

Need woofer for B2030A


Check the watts and size on your old woofer and go to radio shack and get a repacement woofer with the same wattage and size.
Radio shack make great replacement speakers and woofers.

Feb 14, 2009 | Audio Players & Recorders

1 Answer

Hum and Buzz Ground Loop


Best way is with balanced audio lines. Use either XLR or TRS cables IF your devices have those connections.

Also, do NOT use light dimmers as these are often a source of the higher frequencies that cause buzz.

Also power ALL the interconnected audio devices from a single source outlet rrather than from mulltiple building receptacles.

Dec 17, 2008 | Audio Players & Recorders

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