The 21st China International Exhibition on Pro Audio, Light, Music&Technology was hold in the Beijing China International Center(New Venue). Bao Ye Heng took the new product C-MARK US series Network Active Loudspeaker to the exhibition which caused a huge response in the China pro audio industry. The US Network Active Loudspeaker is a Full Range Speaker combined Network Audio processing, Digital Amplifier, Remote Control and DSP Processing together. Features high efficiency, high power output, nice timbre, perfect protection, good compatibility of electromagnetism. By using one CAT5 cable and RJ45 connectors, audio transmitting, controlling and monitoring can be achieved, very easy for installing and operating. US series Network Active Loudspeaker can receive digital audio signals by the built-in CobraNet interface.
　　1) It adopts coaxial speaker which use our own original technology with one magnetic dual-loop. The diaphragm of HF and LF sounds in the same axis, realized HF and LF sounds simultaneously, no time difference, clear voice, high fidelity, high frequency positioning accurate, sound field distribution. Both horizontal and vertical spread angle are120 °
2) Plug-and-play, user-friendly, clear indication, easy manipulate even for nonprofessionals 
　　3) High efficiency, safe output power dynamic compression function and temperature limiting prevents users from worry of malfunction. 
　　4) It adopts CobraNet technology, with backup analogue input & digital CobraNet input.
5) US Series Network Active speaker can remotely on the PC monitor and control the operating temperature, at both ends of voltage and current of the speaker, and enable the DSP signal processing and receive network audio signal by RS1600 remote software (see, network monitoring DSP technology parameters section).
　　6) By using one CAT5 cable and RJ45 connectors, audio transmitting, controlling and monitoring can be achieved, very easy for installing and operating.
7) Excellent high frequency and punchy low frequency, the mid-high and the bass is respectively driven by class D amps. The patented design ensures high-performance parameters, such as distortion, frequency response, slew rate, bandwidth and damping factor.
　　8) With function of current, temperature remote monitoring and remote switch-on/off.　　
9）With complete protection(short-circuit protection, over current protection, over and under voltage protection, DC protection, power compression, temperature compression, long time power output limit, clipping limit)
10) US series network active digital speaker automaticly adapts to AC100-240V 50/60Hz global power supply.
　　11) Independent MCU control, independently running without computer.
　　12) User can control every channel independently.
　　13) All setup parameters can be stored in the memorizer. 
　　14) Firmware is updatable via RS232 port.
　　Suitable for many applications like commercial, company, entertainment, school and army etc.