Yamahs NS-C125 is a 2-Way Bass Reflex Center Speaker System. It features 120 Watts Maximum and 40 Watts Minimum Power handling, Quad 2 1/2" White Cone Woofers and 7/8" Balanced Dome Tweeter. It is magnetically shielded, has Gold-Plated Binding Post Terminals and is an attractive slim design. Sensitivity is 86dB/2.83V/m, Frequency Response is 70Hz-35kHz and Impedance is 6 Ohms.