PC Peripherals Weird Buzzing sound from MX5021 sub.
- Thread starter zhopudey
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read about this a while back in a review.
source: Comparative test: 11 2.1 computer speaker systems (page 2: Altec Lansing MX5021) - BeHardware
is this the same problem?
source: Comparative test: 11 2.1 computer speaker systems (page 2: Altec Lansing MX5021) - BeHardware
is this the same problem?
I understand that you are getting a humming sound from the subwoofer of your speaker system.
I would like to inform you that there are four common causes of humming and buzzing:
a. Sound card:
If the humming or buzzing gets louder or softer with changes in the volume setting, this is an indication of noise coming from the sound card. In this case, check all of the connections to the sound card to make sure they are all completely plugged in and secure. Then, adjust the level setting of the sound mixer to obtain the best performance. Generally, you should leave your CD volume settings in the mixer at full and reduce the sound card's master output level down. For information on doing this, please refer to your sound card manufacturer's documentation.
b. Unused input cables:
If you are not using all of the source inputs to your speaker system (such as using a 5.1 speaker system with a 4 channel sound card), the unused input cables can pick up noise. Make sure any unused input cables are not touching anything.
c. High Powered devices:
If you are using other high powered devices on the same electrical circuit, they may be causing hum or buzz. If so, discontinue their use while you are using your speaker system. Examples of such devices include microwave ovens, halogen lamps, power tools, etc.
Also note that high-power devices with dimmer switches (such as halogen torchiere lamps) will cause an especially pronounced buzzing effect. To minimize hum or buzz, make sure that the dimmer switch on these products is either all the way on or off.
d. Electric Polarity:
In many countries, the electrical power grid is polarized. In these countries, the power plugs are designed so they can only be inserted into the wall socket in a single direction. For example, in the USA one of the plug blades is larger than the other. To avoid humming and buzzing, both your computer and speaker system must be properly plugged into polarized outlets. If your wall outlets do not have polarized plugs, as in the case of many older homes, and you are using adapters to plug these power cords into the wall, it is possible that the polarity of either your computer or your speaker system is reversed. In many other countries, such as most of the European continent, wall sockets are not polarized at all - making it even more difficult to properly match the computer and speaker
system.
To solve the problem, you will need to remove the power plug from the wall outlet, rotate the plug 180°, and re-insert it into the wall. Try this for your speaker system power cord, your computer power cord, or both. You should be able to find a combination that will eliminate the humming and buzzing.
If the issue persists, please try using the speaker system on a different system or audio device. If the issue persists even on a different system, I suggest you to get the speaker system replaced.
Also,please contact the Point of Purchase to get the device replaced if it's within the warranty period.
U may also find this helpful:
Find & Fix Audio Hum!
I would like to inform you that there are four common causes of humming and buzzing:
a. Sound card:
If the humming or buzzing gets louder or softer with changes in the volume setting, this is an indication of noise coming from the sound card. In this case, check all of the connections to the sound card to make sure they are all completely plugged in and secure. Then, adjust the level setting of the sound mixer to obtain the best performance. Generally, you should leave your CD volume settings in the mixer at full and reduce the sound card's master output level down. For information on doing this, please refer to your sound card manufacturer's documentation.
b. Unused input cables:
If you are not using all of the source inputs to your speaker system (such as using a 5.1 speaker system with a 4 channel sound card), the unused input cables can pick up noise. Make sure any unused input cables are not touching anything.
c. High Powered devices:
If you are using other high powered devices on the same electrical circuit, they may be causing hum or buzz. If so, discontinue their use while you are using your speaker system. Examples of such devices include microwave ovens, halogen lamps, power tools, etc.
Also note that high-power devices with dimmer switches (such as halogen torchiere lamps) will cause an especially pronounced buzzing effect. To minimize hum or buzz, make sure that the dimmer switch on these products is either all the way on or off.
d. Electric Polarity:
In many countries, the electrical power grid is polarized. In these countries, the power plugs are designed so they can only be inserted into the wall socket in a single direction. For example, in the USA one of the plug blades is larger than the other. To avoid humming and buzzing, both your computer and speaker system must be properly plugged into polarized outlets. If your wall outlets do not have polarized plugs, as in the case of many older homes, and you are using adapters to plug these power cords into the wall, it is possible that the polarity of either your computer or your speaker system is reversed. In many other countries, such as most of the European continent, wall sockets are not polarized at all - making it even more difficult to properly match the computer and speaker
system.
To solve the problem, you will need to remove the power plug from the wall outlet, rotate the plug 180°, and re-insert it into the wall. Try this for your speaker system power cord, your computer power cord, or both. You should be able to find a combination that will eliminate the humming and buzzing.
If the issue persists, please try using the speaker system on a different system or audio device. If the issue persists even on a different system, I suggest you to get the speaker system replaced.
Also,please contact the Point of Purchase to get the device replaced if it's within the warranty period.
U may also find this helpful:
Find & Fix Audio Hum!
I can also hear the buzzing sound in the sub-woofer when the speakers are off,but the main supply is on.But i have to stick my ears to the sub woofer to listen the buzzing.
Otherwise no noticeable sound coming from subs.
I think it is a bug in every mx 5021 i guess.
Otherwise no noticeable sound coming from subs.
I think it is a bug in every mx 5021 i guess.
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