Preparations for cleaning electrical apparatus, connectors and contacts

[ Electrical mains cables, electrical distribution boxes, filters for removing or reducing noise or power fluctuations caused by other nearby electrical appliances, power supplies, power supplies for audio and professional equipment, electrical transformers, electrical regenerators for converting alternating current to direct current, ] audio and professional amplifiers, headphone amplifiers and phono-stages; [ radio frequency and electromagnetic and interference (EMI) suppressors; voltage stabilizers; ] interconnecting audio cables * and * [, ] loudspeaker audio [ and power ] cables [, HDMI (high definition media interface) and SCART cables, digital audio cables for converting digital signals into analog signals and vice versa; ] devices and equipment for audio and stereo, namely, power amplifiers and turntables; high fidelity isolation components, namely, vibration isolation cones, vibration isolation feet, support platforms and equipment racks specially adapted for stereo receivers and speakers; [ room acoustic treatment devices for positioning about a listening room, floor or wall mounted, to control unwanted audio echoes and to control sound, namely, acoustic separation units; ] wall and floor mounted sound control devices, namely, acoustic separation units [ ; blank compact discs; pre-recorded compact discs featuring instruction in the use and installation of hi-fi equipment; accessories for hi-fi and home audio systems, namely, hand-held remote control devices ]

[ Non-metallic sound absorption panels ]