can use aluminum foil to shield the loudspeaker box wire?
Aluminum foil paper is not easy for grounding. If you can connect the aluminum foil with the pre-stage ground wire of power amplifier and connect well, it surely can help.
It does little help. In principle, since the loudspeaker wire is the terminal of audio device, common interference will not influence its sound effect. Therefore, a shield is not required. Common wires for strong electricity should be laid by poling. However, the wires for weak electricity such as telephone wire, reticle, TV wire or audio wire should be laid through other pipelines. Thus it has little correlation with strong electricity wire with smaller interference. When laying the loudspeaker wire near to the strong electricity wire or laying them at the same time, the insulation between the loudspeaker wire and strong electricity should be taken as a priority. It is recommended to lay the loudspeaker wire at a distance from the strong electricity wire in case of electric leakage.
It does little help. According to experts, the noise of replaying results from external RF electromagnetism frequency. Therefore, using aluminum foil to shield louder speaker box wire will make the music quieter. Actually after listening to LP record, vinyl record or CD, you will find the background of vinyl record is quieter than that of CD. This is because the error during reading CD causes the noise. However, the noise after being amplified and replayed is considered to be resulted by RF. Another proof is that the conduction of silver is quicker than that of copper and the noise of silver loudspeaker wire is more obvious than that of copper loudspeaker wire. Of course, the noise of loudspeaker produced by multifilament is something else.
