Amplifier, is all kinds of audio equipment in one of the largest family, its main function is relatively weak signal source equipment will be amplified input amplifier and sound effects, produce enough current to push the speakers sound reproduction. In consideration of power, impedance, distortion, dynamic and different scope and control regulation amplifier, power amplifier on a different internal signal processing circuit design and manufacturing process is also different. Based on decades sectoral and cross-cutting in the position to explore the power amplifier sound system, Bose engineers used a powerful Class D amplifier design with a unique power, so that in the face of unpredictable power amplifier supply voltage, temperature and output cabinet case load changes amplifier brand BOSE, crown, were able to ensure good performance. There are currently two versions to choose from, PM8500 provides a USB interface through Bose ControlSpace V3.2 or later software will be able to achieve a single set and control functions; and PM8500N adds Ethernet connectivity, enabling multi-station "N" version of the power amplifier of the monitoring. Background music constant pressure amplifier, power amplifier, sound 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!