I have 4 behringer b 615 d. And 3 of those the horn have stop playing

Question edited for clarity.
Question moved from Motorcycles Category.

Sounds faulty. Contact Behringer Support

Product ' US600

Behringer https://www.behringer.com > product
The US600 stomp box offers 5 totally unique Modes: Tremolo Bar, Flutter, Detune, Harmonist and Pitch Shifter. Pitch Shift and Tremolo Bar pitch can be shifted ...

https://www.google.com/search?q=Behringer+us600+%2B+expression+with+Nektar+NX-P

..

It's probably not cost effective to repair it' Check the horn driver and the raw woofer to see if they are still good, and if so retain then as spares.

Generally, there are two possible problems- The horn diaphragm is blown or the power amp to the horn is broken. The diaphragm being blown is more likely. Remove the driver and run a voltmeter across the terminals. If it doesn't show continuity, replace the diaphragm. If it does show continuity, take the cabinet to the repair shop.

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.

I could explain why but, it's simply that Behringer is bottom line equipment, these days, that provides no support and has their components special made. Generic replacement parts can't be used because the values of them are not allowed to be known to the consumer. This means you can't get the equivalent parts to fix it. Sorry, that is my experience with Behringer. I've never been able to find parts for any of these.

The problem is bad high freq. IC TDA7293.
There is no pasive crossover.

Open cabinet and look for loose wiring. You may have blown the tweeter horn if nothing is loose.

This is alimentation fault of the amplifier inside the box. Dismount the amplifier block and take a look first if there are some burned pieces. If it seems all ok, better bring it to a electronics/ tv service center.

does the cab have a horn like the one in the photo if it does then you must think again.

you must try to get a replacement crossover or get a speaker geek to fix it for you its not so hard you can get the burnt out components fro radio shack / maplin so on. most of the blown components will show damage or smell like they are burnt because thats what they are.

the cross over plays a very important job in the fact that it filters of the top frequencies so you only get subs on the bottom 12's bass / mid on the top 12's and hi frequencies on the horn.

you will loose all the quality if you go direct and could easily blow things up especially the horn.

this speaker cab looks like a Kenny i had and when working then they are fantastic. i blow one of the sub 12's and the cross over survived so unplug the speakers and test them 1 by one with a little power from an amp and a small amp that does not matter if it gets damaged

First thing is to test the horn as the crossover circuit may be the problem. If you need the part(s) for the crossover you can get them via DIgiKey.com, however repalcing the horn driver you may have to go through FullCompass.com and if the part has to come from Behringer it takes months.