The JAMO A 500 Bassreflex Speaker is an alternative to a satellite loudspeaker for use in subwoofer-based surround sound systems and as a replacement for the standard sort of loudspeakers supplied with many combo systems. The A 500 is also perfect if you need an extra pair of speakers in the kitchen or the bedroom. This elegant speaker features a 4" woofer/midrange unit and a 2" cone tweeter.