Active Wall Speaker

Active Wall Speaker, Shenzhen Cable think wanji Albert Electronics Co. Here parameters Dimensions: 214Y built-in amplifier, 3.5 signal input all the way, direct plug-in 220V / 12V / 24V can use ABS material, with a volume control button. Power: 6w / 8W / 10W Size: 280 * 110 * 200mm. With treble with separate small package 12 / member or Bulk 20 / piece 216Y Active wall speaker, SXOPA active wall speaker manufacturers, built-in amplifier, 3.5 signal input all the way, you can use direct plug 220V. 10W / 20W 280 * 110 * 200mm. Without independent small package, 15 / piece; with separate small package 12 / piece 219Y built-in amplifier, 3.5 signal input all the way, you can use 220V direct plug 6.5-inch, 30W / 60W 200 * 200 * 300mm.. 8 / member 220Y built-in amplifier, 3.5 signal input all the way, directly connected to the 220V power supply, high-grade white wooden rectangular active wall speaker 10w standard power Dimensions: 166 * 97 * 276mm Weight: 1.7kg Frequency response: 170-1400HZ Sensitivity: 98d Wall Speaker active vibration principle, SX Active wall speaker manufacturers, flat speakers with vibration theory in general is completely different from traditional speakers. Generally traditional speaker, piston-type vibration mode it uses; and the speaker vibration plate by way of random vibration, so it's not just a lowest resonant frequency point, and a dozen points, well-designed flat panel speakers, There are even two dozen points. And it is not the driving point in the middle, because the center does not get the maximum sound pressure and the smoothest frequency response curve, but the best location in the section vibration, plus a 1: 9 ratio of four suspended Hanging point suspension system consisting reasonable. Active wall speaker. Common power amplifier output power: 45,60,90,120,180,240,360,450,600 watt output divided by several specifications, power amplifiers have fixed impedance constant voltage two. Fixed impedance old products, the new products are basically constant pressure type. Fixed resistance output of the power amplifier: This type of amplifier requires constant impedance load. Certain input signal, the output voltage with load changes vary widely. In the public broadcasting system due to the large changes in load, and therefore not suited to this type of amplifier. Constant voltage output of the power amplifier: As in the amplifier with a deep negative feedback device, this deep negative feed back amount is generally 10 ~ 20dB above, therefore, the amplifier's output impedance is low, the load varies within a certain range, The output voltage can still maintain a certain value, the sound quality can be maintained. Constant voltage output amplifiers often used in cable broadcasting system, easy to use, can be allowed to increase or decrease the load within a certain range. The power source of the public broadcasting system commonly used 220V AC mains supply, but also with DC 24V, 12V and 48V three standard minority value external power supply voltage. When there is a DC power supply is especially suitable for use in the electricity supply can not be guaranteed, and not permit interruption of work places, such as: Mobile broadcasting systems, hotels, shopping malls, railway stations, airports, terminals, stadiums and other public places, background music broadcasting system; building Fire emergency alarm broadcasting systems. Amplifier and general professional public address sound system or home use is not the same amplifier. Because it has to work long hours at rated load state, not only requires distortion, frequency response and other indicators of fidelity. Reliability in the heat resistance, overload and impact protection function more stringent requirements. These results show that the public broadcasting system is different from the constant pressure amplifier amplifier. Can not use the same power amplifier substitute other types of indexes! Active Wall Speaker