Network active speaker set is a transmission network, the whole class D digital amplifier and remote control monitoring and DSP signal processing as one of the full-range speaker with. Energy output with high efficiency loud, excellent sound quality, perfect protection and good EMC characteristics via a PC with a CAT5 network cable to the product for remote monitoring and DSP adjust, and enables network audio signal reception. K12 which is two-way 12-inch woofer + 44T tweeter, K15 15-inch to three-way bass baritone + 44T + 75T tweeter, K15M as two-way 15-inch woofer + 44T tweeter, K30 for the three-way dual 15-inch Tenor Bass + 75T + 44T tweeter, K18 18-inch subwoofer. And K Series Network Active Speaker Adaptive AC 100-240V 50 / 60Hz global supply voltage. Features 1) K15 as a third of the 15-inch bass tone alto + 44T + 75T tweeter, K15M two-tone 15-inch woofer + 44T tweeter. 2) using CobraNet technology speaker sound system in relation with the backup analog inputs and CobraNet network input interface functions. 3) K Series network active speakers in the PC remotely powered speakers operating temperature, the voltage across the load, current monitor, and enables gain adjustment and remote switch function. Oh, if it is broken, only to buy a separate sound card how to resolve the speakers echo, dozens of pieces of old) computer has no sound might Six: There is sound but not see small speaker brand speaker selection under budget, open the Control Panel - sound and video equipment - the volume in "the volume icon in the taskbar" check mark before; some other method to solve the computer has no sound: 1, for a separate sound card, check the sound card and the motherboard socket contact is good, you can re plug a sound card. Speaker of the features and technologies, speakers, multimedia project by Wuhan Wuhan Engineering Co., Ltd. Jiuhua video. Video Jiuhua Wuhan Engineering Co., Ltd. (www.jowa-tech.com) strong, credible, in Wuhan of control and adjustment equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Jiuhua Wuhan innovative ideas will lead into the brilliant video and you work for a better future!