What is a loudspeaker?

            Loudspeakers are equipments that we all are familiar with it. By definition, a loudspeaker is a tool that converts an electrical signal into sound waves to provide the most faithful reproduction that is feasible for its design. The most widely used type of loudspeaker is the dynamic speaker. The moving coil principle commonly used today in speakers was patented by Edward W. Kellogg and Chester W. Rice in 1924.

            Depending on the range of frequencies, loudspeakers can be divided into four- subwoofers, woofers, mid-range loudspeakers and tweeters.

            

            Subwoofer loudspeakers reproduce very low frequency sounds that give a sense of ‘feel’ to the sound. Woofer loudspeakers too reproduce low frequencies that extend down to around 30Hz or so.

            Mid-range loudspeakers used to cover frequencies between about 200 or 300 Hz and 5 kHz to 7 kHz.

            Tweeters, on the other hand, produce high frequencies often above 2 to 5 kHz.