Apparatus and instruments for transmitting, receiving, recording or reproducing sound or images; loudspeakers; electric cables; electric connections; headphones; gramophone records; magnetic tapes for or bearing sound or video recordings and cartridges for use therewith; amplifiers; tuners; cassette players; compact disc players; televisions; digital video disc players and MP3 players; hi-fi equipment; mixing consoles; loudspeaker enclosures; loudspeakers and loudspeaker enclosures for professional users; parts and fittings for all the aforesaid goods