Energy pro series 1.5(pair) -Bookshelf size -Quality good Specifications: Design: Vented 2 Way Tweeter: 3/4 inch Soft Dome Woofer: 5 1/2 inch Injection Molded Diaphragm Frequency Response (+/-3dB): 52Hz - 20KHz Crossover Point: 2300 Hz Room Efficiency: 90 dB Anechoic Sensitivity: 87dB Impedance: 8 ohms (nominal) Dimensions; H x W x D (in) : 11 7/8 x 7 3/8 x 7 5/8 Finish: Black Ash Weight: 20 lbs (pair) Designed, Engineered and Made in Canada