When I hook my PC audio into this device I get a hum. Is there a way to fix this ?
1319436
You have a ground loop somewhere. These can be hard to find and fix. I would do some reading on it. Musicians are often very familiar with this problem. Often times it's as simple as making sure that the two devices sharing the circuit (for example, in an audio circuit like this, the computer generating the audio signal and the speakers outputting it) are on the same AC outlet -- often times plugging into different AC outlets can introduce a ground loop. I've had some luck with ground loop isolators and filters. Amazon sells a number of these. You'd want one that's targeted toward your specific cable type. I've also had some success upgrading my audio cables. In one particularly annoying case I finally isolated the problem to a specific AC/DC adapter. When I replaced that with an equivalent, the problem went away. Diagnosis can be tedious. For that last one, I repeatedly unplugged everything then started connecting things one at a time until I found the pattern where the AC/DC adapter was the offender. I had another one that turned out to be a coax cable TV cable -- I have a TV as one of my sources on this device. A coax ground isolator at the cable source took the problem away immediately (I was surprised at how easy that one was). In addition to the specific isolators/filters you plug cords into, you can also get small suppression devices (RF suppression) that snap on the existing cords. I haven't had much luck with those for my specific problems. When you buy a cable with those cylindrical bulges at the ends, that's often the same sort of thing built into the cord.
1000154
Probably a connection issue with one of the components hooked to the TV (mine happened to be a Sony DVD player...) removed that and the hum went away. Gave me an excuse to get a progressive scan DVD player... hooked it up and still no noise. It took me a bit to narrow it down, since I've got so many console systems. ;)
1197106
Have you tried switching your cable? I've never gotten any humming when playing this, either through a tube or solid state amp.
298958
hi , i purchased it recently, i don't have humming or buzzing noise coming from a speaker. if you tell me more specific on when, how and what circumstances i'll try to help.
1269493
The hum might be due to a ground loop. This problem often happens when you interconnect devices via RF/audio/video/etc. cable that are plugged into electrical circuits with different grounds. To troubleshoot this, try disconnecting FM antenna, input and/or output cables from your receiver. Assuming that you have any kind of cable connecting the TV to the receiver, also try removing the RF cable from the TV. Cable TV hookups are reputed to be common causes for ground loops. If the hum goes away with a particular cable removed, search online for a ground loop eliminator device for that type of connection. An inexpensive audio ground loop eliminator is available at RadioShack stores; higher-end audio ground loop eliminators are available online. Cable TV ground loop eliminators are available from online sources. For further information, search the Web for the words "ground loop". Hope this helps! Dave
1983540
Connecting this to pc is an activity. The microphone uses xlr professional connector. Using various adapters to change interface results in signal leakage and hum is picked up. Thus equipment will work with professional audio equipment and not very well with a pc. Very difficult to use because minimizing hum pick up is a major activity.
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.
873698
It sounds like you must have a defective unit. I don't get a hum with either tubes or solid state amp. Sorry yours is making bad noises.
2156899
I too get a low level interference noise from my PC. Ive tried different cables and mixers, some are better than others, but I cannot make it disappear completely because all of my cables ten to "run together" around my desk. That said shielding the signal wires from stray RF is your only option, OR turn them up really LOUD. Just kidding.
1665655
Are the headphones plugged in to the correct colored jack on your laptop? Usually the blue is "input"; the green is "output"; and the pink is for your "microphone". For speaker and headphone use, you would use the green color jack. Also, you may be getting interference from another electronic source - like a cell phone or stereo or tv close by your computer. Try the speakers in another computer at home or at work if allowed, then if you still get the humming, I would ask to exchange the speakers for new ones.
2062697
My best guess is to check the audio and video settings on your pc. Check the frequency if possible. 44.4 kHz, 48 kHz. Stuff like that can make a difference. Good luck. If you have high quality audio card using your pc audio is just as good as long as there is no time lag.
222292
I get the same thing from a Vizio. You could probably get an in-line noise filter to fix that problem but the hum mine isn't loud enough to bother me so I haven't done much.
1231651
The one I purchased did have digital sounding hum/buzz in the background. I returned it and saved up for an ac15c1c.
2284705
Lucy,I found the source of my hum. I have Direct TV HD. I found that going into the menu settings/Audio/Sound Effects and turning that option off, I was able to rid myself of the annoying hum. The option has something to do with keeping the audio settings from channel to channel, while it is changing you hear dead air except for the hum. Nice and quit now. Love this receiver!Larry
23916
I have not had this problem. Have you tried different RCA cables? Also, try checking your computer's sound drives.
279633
Try this: disconnect the coax from your cable box. If the Direct TV speaker hum goes away, this isolator should solve your problem.
1477756
I seem to have the same problem. I am not well versed in audio components and assume that that must be normal. I am hopeful someone will have a better answer or can offer a solution.