A sound bar apparatus having at least one detachable sound transducer, the apparatus comprising: a sound bar body comprising an audio signal processor, an amplifier, and a plurality of terminals (27; 28) formed of an electric conductor and electrically connected to the amplifier; and at least one sound transducer housing comprising a sound transducer and a connection terminal configured to be connected to one of the plurality of terminals (27; 28) of the sound bar body, wherein each of the plurality of terminals (27; 28) of the sound bar body includes a positive (+) terminal (27-1; 28-1) and a negative (-) terminal (27-2; 28-2) and the connection terminal of the at least one sound transducer housing includes a positive (+) connection terminal and a negative (-) connection terminal formed to correspond to the positive terminal (27-1; 28-1) and the negative terminal (27-2; 28-2), and wherein the plurality of terminals (27; 28) is provided on a top surface of the sound bar body and the connection terminal is provided on a bottom surface of the sound transducer housing so that if the positive connection terminal and the negative connection terminal are, respectively, connected to the positive terminal and the negative terminal, an audio signal output from the amplifier is reproduced through the sound transducer; wherein the at least one sound transducer housing is configured to be detachably connected to the sound bar body; and wherein the sound bar apparatus further comprises a coupler configured to fix the at least one sound transducer housing to the sound bar body so that the at least one sound transducer housing is not separated from the sound bar body when sound is reproduced by the at least one sound transducer housing. a sound bar body comprising an audio signal processor, an amplifier, and a plurality of terminals (27; 28) formed of an electric conductor and electrically connected to the amplifier; and at least one sound transducer housing comprising a sound transducer and a connection terminal configured to be connected to one of the plurality of terminals (27; 28) of the sound bar body, wherein each of the plurality of terminals (27; 28) of the sound bar body includes a positive (+) terminal (27-1; 28-1) and a negative (-) terminal (27-2; 28-2) and the connection terminal of the at least one sound transducer housing includes a positive (+) connection terminal and a negative (-) connection terminal formed to correspond to the positive terminal (27-1; 28-1) and the negative terminal (27-2; 28-2), and wherein the plurality of terminals (27; 28) is provided on a top surface of the sound bar body and the connection terminal is provided on a bottom surface of the sound transducer housing so that if the positive connection terminal and the negative connection terminal are, respectively, connected to the positive terminal and the negative terminal, an audio signal output from the amplifier is reproduced through the sound transducer; wherein the at least one sound transducer housing is configured to be detachably connected to the sound bar body; and wherein the sound bar apparatus further comprises a coupler configured to fix the at least one sound transducer housing to the sound bar body so that the at least one sound transducer housing is not separated from the sound bar body when sound is reproduced by the at least one sound transducer housing.