Description:1. The use of high-quality MDF board to ensure pure sound quality.2. The high power tube, has a short circuit reverse protection for the box.3. The star protective cover: the use of ABS plastic, play a collision protection role.4. Unique paper cone design, so that the bass is more robust, more stable performance.5. Box ultra-thin design: the effective saving of interior space, the appearance of the box with high-grade blanket fabric design, reduce resonance. Feature:RMS Power: 75 W Max Power: 480 W Frequency Response: 20 HZ 20 K Hz Signal/ Noise Ratio: 91 d B Low-pass Filter Crossover Frequency: 40HZ250HZImpedance: 4 Package Included:1 X Speaker 3 X Cable 1 X User Manual