The speakers are phoning, how to deal?

Question

Iron

There are such columns market.yandex.ua/model.xml?modelid=936902&hid=9110... and they emit light. If you turn on the "3D" button, they emit more light. The cable is shielded. On 2 PCs they sound the same. Is there any way to deal with this, other than replacing the speakers?

Answer 1

For Svens, this is a family thing, and even for expensive models. Disgusting primitive schemes of amps that manage to direct the background on from anything are affecting. The first week I listened to the local radio station on the disconnected speakers until I got tired of it. I reduced the background to a minimum by the following actions:
1. I wrapped the entire inter-column connecting cable with adhesive foil (I don’t know what it’s called correctly, such a metallized adhesive tape). The background did not disappear, but it became 20-30 percent quieter
. The background has disappeared almost to zero.

Answer 2

At one time, I was helped by changing the audio card, from the one integrated into the mat. the fee is very phony. If the 3D background increases from the button, it is unlikely to help, but you can experiment.

Answer 3

>how to fight
not to buy SVEN. (they save as much as possible in an effort to reduce the cost)
In theory, you can paste over with foil (depending on where the cause of interference)

Answer 4

Replace electrolytic capacitors. First of all, in terms of nutrition, and then in the speaker circuit that are.

Answer 5

I was helped by a cable in a ferromagnetic body. Having connected the radio through it, the speakers almost stopped catching. I took the cord from the camera (there is just a cable for outputting audio from the minijack to two tulips).

Answer 6

There may be a problem in the power supply of your home, try connecting the source and the acoustics themselves through the UPS. Good luck :)

Answer 7

UPSs come with a stabilizer and with an isolation, and with a relay, do not argue.
Algorithm:
- eliminate the possibility of external radio interference, for this it is enough to look for a place for the amplifier in the room where the interference disappears.
- ground the amp case.
- if the noise source is not a radio, then disassemble the amp case and change the conduits in the power supply to new and more capacious ones.
- if it still does not help - hard shielding of the amplifier power supply transformer (thick permalloy or ferrite plates). But it can be easier - try to twist or rearrange the trance inside the case, the interference may go away. Replace the trans with a new one (the ferrite is loose in the old ones) or find a similar one on the ring (this is best)
- if it still doesn't help - take the power supply and the circuit apart by a meter and look / listen)
- well, if it still does - throw it out and buy another one.