A sound system component is composed of a TUNER (5 letters), an amp (3 letters), a WOOFER (6 letters), an EAR (3 letters) and a tapedeck (8 letters). A TUNER is a device used to receive radio signals and convert them into audio signals. An amp is an electronic device that increases the power of a signal. A WOOFER is a loudspeaker designed to produce low-frequency sounds. An EAR is a device used to listen to sound. A tapedeck is a device used to play and record audio tapes.