whats causing a humming noise
1980690
no idea, probably about to die, mine just all of a sudden quit, only 4 years old and cost $100.00 to fix, which we had to call several places before we could even find someone to would/could fix it, everything is junk!
1080312
I have two pairs and both had a humming sound when plugged into AV receivers. The humming sound was much lower when plugged into the high-end AV receiver.
2144805
Sounds like it's too much squelch. Turn it up until you have a constant static, then back it off until there's nothing. That's what we did and we don't have that problem.
129126
The unit is not that loud. You of course can hear it running but the humming noise is tolerable.
1803459
Consider the size affords moving to an area where spurious electrical signals would be minimal. Use an outdoor extension cord to move as far from any building as possible. If the noise continues then the problem is from the internal electronics. If the hum is gone then the problem is coming from the area where you normally use the Bose. You need to find what the problem source is by turning off all the electrical apparatus near to the unit.
918091
I have not noticed a humming sound. I have been quite happy with it. It meets my needs.
95291
If you're 100% sure it's not the source, then yes. I don't have hum unless I am on high volume but I have had a lot of source hum from my sound card. So check that out before shipping it off.
569375
A hum that you can hear is normal. If it is loud, something is wrong. If it is noisy without a load connected, I would replace it. Are you sure you have not overloaded it?
58590
It makes a little noise but not too much. It is just a low hum in the background
1485456
The fan doesn't make much noise. Depending on the temperature setting, the fan makes a low "quite" hum.
569378
Yes, these units have a rather strong humming sound when the power is going to the lights. Mine is mounted outside and not near any open window, so it is no bother. If yours is making noise through the wall, you might want to put some soft foam between the unit and the wall to isolate the vibration.
778759
Could but a short in one of the jacks. Open the unit and inspect for loose soldering or something making contact. Also check your guitar cable(s). A compressor/sustainer is going to basically amplify all string noise and buzzing coming from the guitar. The main thing that causes hum is the 60 Hz AC current, so check the pedal's power supply; make sure the output (100 mA) is matched. Make sure if your 9v battery is good if using battery alone. Compression is best AFTER Overdrive because you're picking up all the static in the line.
208944
Ours makes a small cyclic hum. You can hear it. It doesn't bother me, but everyone has different tolerances.
83961
Are you using a wall power supply or battery? The power supply could be injecting a 60 Hz hum. Try a battery and no power supply. If there is no hum, replace the power supply. If there is still hum, check your cables, switches & pots in your guitar and then your amp. Still hum after all that, the pedal is probably bad.
337842
No, never. We are very pleased with this transformer. It runs noise free. What I can tell you though is that the one we had before this one got fried, as someone hooked an appliance up to it that was exceeding the allowed maximum wattage. That one did make a loud humming noise before it blew. If you are certain that your wattage is a match, it might be defective. The only other thing I can think of is try setting it on the floor, that is where I keep mine. Somethimes transformers can make surfaces vibrate and cause a humming sound while running.
2240102
I've had best buy out twice now. The first time to replace all the screws in the back of the tv and that helped for about 1 week and the buzzing or humming sound came back. Best buy came today and replace one of the boards on the tv and i'm hoping this will fix the problem.
268489
Mine does not hum, I use it as an automatic transfer switch in the living room, it's been on 24 hrs a day for a month with zero noise. I would return it and try another one.