Monolith by Monoprice K-BAS Reference Series Bookshelf Speakers (Each)

50 Watts RMS, 150 Watts Peak5.25" Polypropylene + Mica Cone Woofer1" Liquid-Cooled Titanium Dome Tweeter 39Hz-20kHz; ±2.2db Frequency Response8 Ohms Impedance. 87dB Sensitivity