1, NS series of speakers using computer-aided design: the use of advanced equipment with engineering application features a comprehensive tuning box, with advanced manufacturing processes to ensure high quality products. Selection of imported paper tray unit, with high-precision oxygen-free copper inductors, polypropylene capacitors, sound more pure. 2: NS Series speakers as an independent full-range speakers, eliminating the need for an external crossover drive trouble a strong low-frequency driver and a 1.75 inches (44.4mm) high frequency compression driver mounted on a continuing point of 100 ° x50 ° Elliptic fiberglass horn on. HF horn speaker conference speaker system can rotate the device, making the multi-angle enclosure both horizontally and vertically placed, make the system more compact. Mobile PA system for outdoor, indoor SHOW it, shake it slow and fixed installation systems and other places use. 3: The box is small, high power, high sensitivity. 4: multilateral type box, suitable for more applications. Coverage angle 90 degree rotation horn problem solving different applications: 5. 6:12 grain M8 nuts hang out holes plus a standard stent struts, durable and easy to install. 7: sound soft but just, treble delicate and beautiful, clear and transparent. IF round and full and flexible theater speaker horn BOSCH, real and natural. Restore vocals and instruments give you the feeling shines. And WS-15, WS-18 or WS-218 and other subwoofer supporting the use of the composition of full-range speaker systems engineering PA system, used to expand or enhance the low frequency output of the speaker, it will produce unexpected results. Network Active Speaker section features: 4) audio transmission, control, monitoring, only one CAT5 cable and RJ45 RJ45 connector, installation is very easy to use. 5) the bass and treble separately by two independent Class D amping. 6) with perfect protection function (short-circuit protection, over current protection, over voltage protection, DC protection, power limiter, temperature limiter, clipping limiter). 7) K Series active loudspeakers are developing a network based on the power switch and automatic control technology for over 40 years gained. Power switching technology provides high reliability, small size, low weight and high efficiency. As high-frequency signal sampler, the pulse width modulated converter to convert the work variable amplitude (voice) signal into the equivalent of impulsive sound signal output, using a high frequency conversion to obtain a high-performance sound. 8) Independent MCU control, run independently from the computer, you can independently control each receiver channel. 9) All setup parameters are stored in memory, you can update the firmware via the RS232 port. 10) network transmission redundancy. Loudspeakers PA engineering, speakers, conference engineering provided by Wuhan Wuhan Engineering Co., Ltd. Jiuhua video. Jiuhua Video Engineering Co., Ltd., Wuhan (www.jowa-tech.com) strong, credible, in Wuhan, Hubei control and adjustment equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve Wuhan Jiuhua innovative ideas will lead into the brilliant video and you work for a better future!