PortableAudio System, PA speaker box; Pro Audio EP8200 The EP8200 series is the similar PA like EP4200 series but with more power. It is compact for easy of transportation and storage, while it is powerful enough and its user-friendly controls, making it the perfect choice for small venues, such as wedding, business presentation, choir and music rehearal, dance, school function and home entertainments. MP8150 features dual two-way speakers driven by 300 Watt CLASS-D stereo powered mixer, dynamic microphone, two folding speaker stands and all necessary connecting cables. FEATURES Molded, high-impact PP carring case 1) Convenient briefcase design 2) Light weight 3) Inerlock speakers 4) Internal space for microphone, speaker stand and cable storage Powered Mixer: 1)Output Power: RMS: 150W*2 2)CLASS-D amplifier 3) Wide dynamic range 4)DSP reverb function 5) 3 band equalizer 6)Perfect sound by low distortion, High S/N 7) Input: 4 channels XLR & 6.3 mm TRS microphone inputs; 2 stereo RCA inputs 8)Speech/Music choice for microphone input. 9)Wide frequency response, make sure full gamut music can playback 10)Output signal level display insures the speakers work in rated power. 11)Each channel of input with independent volume, low and high EQ controls 12) Two master speaker channels with independent volume control 13)15V phantom power for condenser microphone 14) Besides two master speaker output, the product feature RCA output for recording and monitor speaker out for other equipments 15)Completed protection: short circle protection, thermal protection, over load protection 16)Open protection: delay open function can protect the speakers from damage. 17)MP8150U with MP3 module can read SD/MMC card and USB.Speaker: 1) Molded PP enclosures 2) Metal mesh grille 3) Two 10 high output woofers and one tweeter per speaker 4) Molded speaker stand receptacleSPECIFICATIONS 1) Power supply: Optional AC 115/230V 2) Output Power: RMS: 150W*2 3) Frequency Response: 45Hz---18KHz 4) Sensitivity: MIC: -50dB; LINE: -10dB; TAPE: -6dB; CD: -10 dB 5) THD: 0.5% 6) S/N: MIC :65dB; LINE: 80dB; CD/TAPE: 80dB; 7) Bass/Treble: +/-15dB