Question about Music
Posted by Anonymous on
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Posted on Jan 02, 2017
You need to replace the potentiometer with the broken shaft. You can open the unit and try to get a part number or go to Behringer parts to get an exact replacement. The pot must be matched for value, taper, and mounting and shaft dimensions.
Posted on Jun 07, 2010
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.
Posted on Sep 22, 2010
You will PROBABLY find the 4 screws on the sides that screw into the chassis and then get frustrated that it will not come out... MANY of the Behringer things HIDE the other screws as the ones holding the handle... The trick is to get at them... The plastic end covers over the handle have ridges that snap under a metal plate that is over the handle. Carefully pry out the plastic near the handle to release these ridges... pry SIDEWAYS a bit... The ridges snap into small cutouts in the metal... what a pain these are. Use a small 1/4 inch screwdriver with blade vertical right where the handle comes out to bend the plastic outward... Dont reach in very far as the blade will catch the metal... just far enough to catch the plastic cover edge... it is scary. The two handle screws usually go into nut-plates that are a part of the amp chassis.
The DI consists of two sections of an op amp and is truly driven differentally. There usually is a couple of 120 ohm series resistors and a couple of hf bypass caps near the connectors
Posted on Feb 07, 2011
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