Audio equipment, including, power audio amplifiers, receivers, tuners, graphic/parametric equalizers, audio compressors, audio mixing consoles, microphones, speakers, speaker enclosures and cabinets, and speaker grills/baffles; electrical equipment, including, electrical impedance matching systems comprising volume controls and speakers selectors for residential or commercial sound/public address systems, audio cables, electrical connectors, electrical control systems comprising sound room combining or sound source distribution modules for residential or commercial public address sound systems, volume controls, attenuators, and electrical transformers and wall outlet connector plates; compact disc players, cassette players, DVD players and recorders, video cassette recorders, projectors, and televisions