Profile: Shenzhen Bao Ye Heng Industrial Development Co., Ltd. specializes in the development, and manufacturing of pro-audio equipment. We are an ISO9001:2000 certified company. Our products include loudspeakers, mixers, digital & power amplifiers, processors, wireless microphones, and conference systems. Our analog amplifier is available in MR, DB, OK, MS, and MS series. Our MR series is designed as high standard pro-amplifier. It offers many selectable powers, with top power up to 1000Wx2-8ohm. The DB series power amplifiers are another milestone for C-MARK, with 24 bit DSP audio processing and computer-remote-control. Computer adjusts effect parameters such as gain, EQ, crossover, delay, phase, limit, etc. The C series wireless microphone system with 64 selectable frequencies via Phase Locked Loop (PLL) circuitry makes and it easy to choose non-interfered channels with its dual receiving system, make it possible within 100m, with no break frequency.