8/10 Inch 280W*2 8Ohm High School Low Speaker Bass Silk Film Tweeter Hifi Bookshelf Speaker Passive Fever Sound Box for Home Theater 2Pcs  8 inch  10 inch   Rated Power  80W  150W  Peak Power  180W  280W  Frequency Response  30Hz-20KHz  30Hz-20KHz  Sensitivity  90dB  90dB  Signal-to-Noise Ratio  >80dB >80dB  Impedance  8ohm  8ohm  Weigh  23kg/pair  27kg/pair  Dimension  30*28*49cm  30*23*55cm Package Included: One Pair of SpeakerProduct Features: 1. Proper unit placement The tweeter and mid/bass drivers are close to each other. The internal support of the cabinet is more solid,and the sound image is more superior. 2. Imported materials for sound unit Imported titanium membrane super tweeter,silk membrane tweeter,equipped with a hemispherical membrane 4-inch pure midrange unit and fiber cone bass,increase the fullness of the human voice,sound reproduction more real. 3. Audiophile crossover layout is reasonable and carefully tuned. Fine parts,so that the acoustic signal in the crossover to get better processing. The treble shows rich details and better high-frequency extension,while at the same time,the transition with the mellow low-middle frequency is more natural. 4. High-end design/cabinet reinforcement 18mm high-strength cabinet,the center of the cabinet is equipped with a reinforced wooden plate to enhance the stability of the cabinet. No resonance when playing dynamic music,ensuring that the cabinet will not be deformed after a long time of use.