I have a pair of M-AUDIO BX5a but one of the pairs has a buzzing sound.
It was working ok and then I started making a buzzing sound.
What should I do?
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Hello Jon,
Thanks for posting. Sorry to hear you're having trouble!
A good test to confirm the issue lies in the speaker would be:
1) Disconnect any audio cables from both speakers, leaving only power cord
2) If buzzing still occurs, swap the power cords between the speakers
3) If buzzing still occurs and in the same speaker, we know the issue is due to something internal to the speaker.
If this is the case, contact technical support or the distributor in your region to discuss service options:
USA & Canada
Phone: 401-658-5765
Hours: Monday - Friday 8:30AM - 6:30PM EST
Germany
Phone: +49-2154-81299-20
Hours: Monday - Friday 9:00AM - 5:00PM CET
UK/Europe
Phone: 44(0)1252-896040
Hours: Monday - Friday 9:00AM - 6:00PM BST
Brazil
Phone: +5511 - 3222-6476
Hours: Monday - Friday 9:00AM - 6:00PM BRT
Email
http://www.m-audio.com/support/contact
International Distributors
http://m-audio.com/distributors -
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Same thing just happened to one of my BX5a speakers. I did everything you suggested, @Dan R – still doesn't work right. I would also add that when I turn the power switch from On to Off, it jacks the speaker, causing a loud noise – almost a popping noise, but not quite the same.
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You need to replace the main electrolytic capacitors.
If you are trained or educated in this field, then you can do it yourself easily.
I recommend doing both speakers.
I had one fail, fixed it, the other failed 6 months later exactly the same way.
I posted a detailed description on what failed and how to fix it. The moderators of this forum deemed that the content was inappropriate.- view 4 more comments
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My speaker is doing the exact same thing as mentioned. I'm going to change the caps as well.
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Changed the power caps and fixed the problem. I bought 4 6800uf 35v power caps from ebay for $10.
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I also had a loud static hum in one of the monitors. First I replaced the 6800 μF capacitors with new ones but the problem still persisted. Unwilling to give up so easily I kept on thinking and decided to replace the power amp circuits. The reason for this is that the monitor has two separate amplifiers for low- and high-frequency channels powered by the same transformer. This ruled out the possibility of badly connected jack- or XLR-connector and several problem descriptions in the internet indicated problems to be occurring in just either one of the channels.
I found similar TDA2052 V-amplifiers by ST Electronics from ebay (~3 €/pcs) and soldered the new ones on the PCB. After putting everything together I tested the monitor and now it works like a charm. -
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Please allow me to give you some feedback. I had three Dell computers go down with leaky/bad electrolytic capacitors on the motherboard. Dell sent me three new motherboards. It seems to me this is a similar problem, known bad electrolytic capacitors....
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It is well known that BX5a biggest problem are the 6800 μF/25V capacitors. Browse the net and you'll see.The worst thing is that if you don't fix the problem sooner, you risk to destroy both the tweeter end the amp (in that order). This happened to me! For such hidden manufacturing faults, cars are recalled in service. Consummer rights must be respected.
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How does it destroy the tweeter?
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Hello! I had a similar problem and changed the caps in both speakers which helped stop the crackling.
But now my right driver takes 5 minutes of more to warm up.
The tweeter works when I turn it on, but he driver takes at least 5-7 minutes before it will produce any sound. And it will usually make a popping sound right before it starts working.
Has anyone heard of this? -