The Harman Kardon CS6100 is a high-performance 5.1-channel speaker system, with five satellite speakers and a subwoofer, which offers exceptional audio quality. The 30-20,000 Hz frequency response of this Harman Kardon speaker system provides balanced and clear audio, across all frequencies. The 0.5-inch tweeter (Satellite speaker) in this 5.1-channel speaker system delivers natural and clean highs. The Harman Kardon CS6100 speaker system has 3.5-inch dual midrange drivers (Satellite speaker) that render excellent realistic audio output. The an 8-ohm impedance in this Harman Kardon speaker system offers dynamic and high-end sound quality while using minimum power. Get loud and rich audio output due to the 88 dB sensitivity of this 5.1-channel speaker system.