Yamaha NS-AC40X 2-Way Hi-Performance Center Channel Speaker (Single) (Discontinued by Manufacturer) Power Handling (Music/Nominal): 140 Watts/ 70 Watts Drivers: Dual 5 1/4" Aluminum Woofers and 1" Aluminum Dome Tweeter with Attenuator control Bass reflex design, Magnetically shielded for video use, Wrapped black finish cabinet with acoustic gray baffle with Gold plated 5 Way binding posts Frequency Response: 80Hz-20kHz Impedance: 6 ohm