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Is it possible that the Behringer speakers Ultrawave B300 has cooling problems and connections problems at high volume (craking soldering when exposed to bass speaker vibrations ?)

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Marcos_Ce
  • 71 Answers

SOURCE: My Behringer BXL3000A bass amp's

If the noise appears only when you rotate the control, there is dust inside it. With the amp disconnected from mains, rotate the volume control from min to max back and forth for about 30 times. See if this helps. This is not a definite solution, you maybe have to replace the potentiometer or spray some potentiometer cleaner. Good luck!

Posted on Nov 23, 2008

  • 3 Answers

SOURCE: Behringer B300 active powered speaker

if you mean they go in overload you have just to change the ic 7815 and 7915. D.Donnon

Posted on Jun 07, 2009

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VOLUME COMING FROM SPEAKERS RUNS HIGH AND LOW AND HAS A POPING SOUND


This sounds like a bad solder connection. IT could be on the board that controls the volume. They can be troublesome to locate. You can disassemble it and use a hand magnifier to look for cold solder joints. When you locate one, you use a 40 Watt soldering iron to reheat it and hopefully that fixes the problem. https://learn.adafruit.com/adafruit-guide-excellent-soldering/common-problems

Oct 18, 2015 | Pioneer VSX-1122-K Receiver

1 Answer

Marantz SR-66 Shut down!


Sounds like the protection circuit is tripping. With power off, check for loose speaker connections. Also, look very closely for shorts in the speaker wires. Even a single loose strand can touch another connection and create a short, which shuts down the receiver.

I would take take the frequency splitter out of the circuit and see what happens. Check for acceptable impedances in the manual. The receiver may not like the load the splitter presents.

The receiver may have settings for bi-amping. Then you use one set of terminals on the back for treble, and a different set for bass.

Feb 03, 2015 | Marantz SR-66

1 Answer

On back panel impedance for 2 speakers is 4-16 ohms. I run a pair of 6 ohm speakers with receiver and this is find. I want to connect 4 speakers all 6 ohms impedance and need to know if this is safe for...


Stephen, it may depend on how the system is protected, but generally the protection is designed to prevent the transistors from overcurrent. This would happen if you turn the volume up too high. If your receiver is newer--say built after 2005 or so, it will likely protect itself. You can hook up your speakers and see if it works. It will likely trip the internal protection at high volume, depending on the amplitude of the music signal. My main warning would be to not run the volume high for long periods and make sure there is nothing blocking the cooling vents on the unit.

Jan 14, 2015 | Audio Players & Recorders

1 Answer

I have nad tuner 4155,sounds garbled and very little volume


Hi, you might need to replace Some damaged resistor controlling the sound function.
Please if no basic experience ,contact a repairman.

Replacing Damaged Resistors

Disconnect the stereo at the plug and remove the outer case.

Confirm that the resistor is damaged by testing the tolerance with a multimeter. Melt the current solder with an iron and remove the damaged resistor.

Mount the replacement resistor onto the circuit board. Trim any surplus lead material from around it.


"Tin" the tip of the soldering iron by melting a tiny amount of solder directly onto it. Remove any surplus solder and place the tip straight onto the circuit board.

Melt a tiny amount of solder straight onto the joint, using the solder spool. Ensure that the solder does not touch the tip of the iron.


Melt the solder straight onto the area between the resistor lead and the printed circuit board. Leave it to set and ensure that the joint is strong. Reassemble the stereo and test it.

Also Spray the volume control knob with electrical contact cleaner. Twist the knob from low to high to make certain that all the workings are adequately lubricated. This should eliminate any interference that you've experienced when adjusting the volume.

Check the condition of the speaker wires if the stereo is emitting no sound. Ensure that no bare wires are coming in contact with each other. This will result in a dead short. Replace any damaged wires with new ones.


Check the connections of all speaker wires if no damage is detected. Ensure that the wires are securely connected at the back of the stereo and at the speakers' connections. Confirm that the positive and negative connections on the stereo are connected to the corresponding speaker connections.

Good luck..

Aug 28, 2011 | NAD Audio Players & Recorders

1 Answer

My sony str -da400es goes into protect mode at high volumes (+5db) Speakers are wharefadle 10.1 (2 pairs) It isn't overheating as unit is cool and also fan cooled. I recently had to extend the speaker...


Did the problem appear immediately after the wire changes?

Solder, crimp connectors or wire nuts would have been better than just twisting the wires and taping them. It COULD very well be part of the problem.

Two pairs of speakers - what's the impedance presented vs the amp's specs? Bi-wired? (BUY-wired)?

+5 is pretty loud or at least demanding amp-wise. It could be distorting so badly at that demand level that it HAS to self-protect elst it kill itself and/or the speakers.

Aug 19, 2011 | Audio Players & Recorders

1 Answer

..my pmp 2000 power shut


Do you mean "Behringer" PMP2000?

If so, register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Behringer-PMP2000-manual/id/23281ag523/t/2/

As always, you should refer to the manual FIRST before coming here.That is where WE will usually start. But this one offers NO troubleshooting guidance or you could be talking about a whole different product so...

Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Check for loose speaker connections at the speaker as a possible root cause for intermittent shutdown.

Jun 18, 2011 | Audio Players & Recorders

1 Answer

I have a Yamaha Reciver HTR 5940 When i turn on the reciver it cuts right off. I checked all plugs speakers etc.. It only stays on like 2 seconds and cuts right off Can you help me


As long as it doesn't blow fuses, you have a cold solder connection on the circuit board. It developed from past heating of the components due to high current - possibly from having the volume turned up too high or a mismatch of speaker impedance. Check the circuit board for the cold connection.

Jan 06, 2011 | Audio Players & Recorders

1 Answer

Behringer B300 active powered speaker always clipping.


if you mean they go in overload you have just to change the ic 7815 and 7915. D.Donnon

Oct 29, 2008 | Audio Players & Recorders

1 Answer

Siemens prisma 2 vc has lost volume


It is a loose connection or cold solder and cleaning problem this is the main caused of no volume..Cold solder issues - each component is soldered into small holes on the printed circuit board which in turn connects said component to the other components. Due to time, heat, use, some solder joints would be cracked or loose. It is possible that the cold solder is still minimally connected (hanging by a thread). When the receiver turns on heat would be generated which would be sufficient to further loosen up the solder joint to the point it no longer provides electrical contact. Jarring the unit creates movement inside enough to re establish the contact, sometime good enough sometimes not enough.

Again, since the unit still operates (sometimes) then it is highly probable that there are no defective components. As you have surmised, it is possibly a loose connection, solder joints are "connections" except that molten soldering lead is used to attach/connect the component to the board, "loose connection" in this sense is equal to "cold solder".

Again on the assumption of no defective parts, then seeking a more experienced buddy for the soldering might be to your advantage. This is of course in addition to the possible electrical hazards when repairing....

Good luck:

Regards,
VOTIT

DON'T FORGET TO RATE;

Jul 31, 2008 | Audio Players & Recorders

1 Answer

I have a car with an alpine cha1214 cd player.I only purchaced the car last night and when I play the cd player with the radio off I can't get any volume from the cd player.It has a remote but no volume...


No sound problem is power amplifier trouble maybe the IC there is defected or cold solder of joint of the parts.Cold solder issues - each component is soldered into small holes on the printed circuit board which in turn connects said component to the other components. Due to time, heat, use, some solder joints would be cracked or loose. It is possible that the cold solder is still minimally connected (hanging by a thread). When the receiver turns on heat would be generated which would be sufficient to further loosen up the solder joint to the point it no longer provides electrical contact. Jarring the unit creates movement inside enough to re establish the contact, sometime good enough sometimes not enough.

Again, since the unit still operates (sometimes) then it is highly probable that there are no defective components. As you have surmised, it is possibly a loose connection, solder joints are "connections" except that molten soldering lead is used to attach/connect the component to the board, "loose connection" in this sense is equal to "cold solder".

Again on the assumption of no defective parts, then seeking a more experienced buddy for the soldering might be to your advantage. This is of course in addition to the possible electrical hazards when repairing....If this solution help you understand the problem :rate as fixya..

Good luck;

Jul 15, 2008 | Audio Players & Recorders

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