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The input jack on the
The jacks have to be replaced. If you are not adept at repair, best to take it to a shop for the repair. Do NOT use the unit till repaired. If the jack shorts you may damage your amplifier.
on Jul 31, 2011
I've got a Behringer Ultrabass Bb410 1200w 4x10
The cabinet is listed as a 4 ohm unit.
We would exoect to see four, 4 ohm speakers in series parallel or four 16 ohm speakers in parallel.
If teh unit seems to rattle, first put an audio oscillator into it and sweep the frequency. It is common for grilles and also logos attached to them to rattle.
Open the unit and power each speaker the same way individually for a test.
I suspect you will find either the grille or mounting hardware is actually doing the rattling OR possibly the wires inside are vibrating.
If the sound is a scratchy buzz, then the speaker(s) have probably had voicecoils damaged by overheating.
In this case, buy 4 new speakers and replace all. It is not likely to find replacements for the Buggera brand they put in these cabinets. Also the word on the web about that brand of speaker is not very good.
on Sep 22, 2010
Audio from Laptop to Behringer mixer plays for a few seconds and cuts out.
See if another audio source connected to the mixer produces the same results. Try with the same cable and then with another cable. The purpose of this procedure is to determine if it is the cable and/or the laptop. (Sound card problem???) or mixer.
Is it ALL audio or just specific audio from for instance, a music application? Does it cut out using iTunes?
The mixer may have a bad or oxidized input. Try a different input channel? Are you using headphones to listen? It may be the headphone amp? OR, if audio is produced via amped speakers, it may be the mixer output. Does the mixer have metering? Do the meters also cut out? Does the laptop do the same thing if plugging in headphones to the laptop directly (no mixer)?
on Oct 23, 2019
Hello, I have a Behringer PMP98os & its not working right
I looked up what that unit is so I'm not uber familiar and this is before coffee, however, check your effects levels, possibly delays or echos are building up on an individual channel and adding to your total output making it clip. Even if you don't have the effects on output, they can work in the background and clip internally. Is the output sound affected? Magnetic interference is another possibility if you are running it close to pickups, recorders and other high power supplies. Trim levels set too high? I don't know your actual stage setup but these are a couple things I have experienced through the years. Ahh, here's coffee and a drink to you finding your problem.
on Sep 15, 2019
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