Behringer B115D - Serato DDJ SB3

Question edited for clarity and the real name of the model, plus all the typos.

Send it back and claim a 3 year warranty repair. It may be dirty controls, but could also be failed internal components like blown capacitors.

https://www.behringer.com/service/service-warranty.html?modelCode=P0AEB

https://www.google.com/search?q=Behringer+EuroLive+B115D

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I had two of these units fail exactly the same way. The amplifier assembly is the failing part.

If it's out of warranty, then you will need to order a replacement. Don't bother with Behringer support, they aren't helpful. I recommend a place called The Tone Garage. They have said they can order replacement amplifier assemblies in about 4 weeks.

Here is the link:
Eurolive B115D Powered PA Speaker

The 15 inch woofer is blown and you are hearing only the tweeter horn. I would definitely check that speaker on something else though, because the amps inside will also blow fairly easy, and you can't get parts for these. I would salvage what you can and move on. If both speakers work alone, check connections and amp. If you find that the 15 does work, then make an unpowered monitor. Behringer does not give any referencing of any parts. They have all special part numbers that you can't crossreference to find replacements. This is a marketing strategy to eliminate others from repairing, so you will buy another one. They think they would sell more but it just turns musicians away from their junk. The only piece of behringer equipment worth using is the FCB1010 controller and nothing else.

Hi, your amp has a short if the fuse is blown - it needs to be repaired - we can fix it - look on ebay. Thanks.

Search on google by your local area. You will get some result.

I would guess this is less than 3 years old and assuming you registered you will have a 3 year warranty so they'll probably fix it for you FOC

Audio Equipment: Is the loud popping sound when you plug/unplug your speakers bad for them?
Most speaker cones are driven from a power amplifier.. The pop - like you said - is a transient spike. But the important thing here is that it gets amplified up through the pre-amp and into the power amp.. Speakers usually move in the ol' in-out fashion with respect the the voltage at the input.. and a big spike could loosen the cone from its suspension mechanism.. The higher the power and the more delicate the cone - the more the danger to the speakers ( what is normal for a woofer cone, could end blowing up a tweeter cone) . For e.g. In live events, where high output PA speakers are used, this is a very serious issue - because such a spike could throw the speaker cone out of its place, and it wouldn't work from that point on. For this reason, some high end audio equipment have a limiter at the output, that prevents signal from exceeding a certain predefined limit. So any occuring transients would never hit the cone at a level that is unhealthy to them.

Most home audio equipment tends to operate at lower levels. That being said, there is still some damage inflicted on the speakers - just maybe not of the same magnitude.. especially the smaller ones.

If your system has a remote control, it might be wise to hit a mute button just before you change to another input... or maybe find a way to turn off just the speakers (if separately powered) before you interchange the connection