Speaker impedance introduction

Common audio equipment commonly mentioned impedances are the impedance of the speaker, the input impedance of the front and rear amplifiers, the output impedance of the front stage, (the latter stage is usually not called the output impedance, but the output internal resistanc

DRAM price trend in the second half

The decline in DRAM prices also helps to drive down PC prices, which is an important news for consumers planning to purchase new PCs. Earlier in 2010, a shortage of DRAM led chip makers to increase production to ease the problem of insufficient supply. However, research firm Gartner belie

"20-hour notebook" listed at the end of the year

(Reporter Jia Zhongshan) Yesterday, a "Super Bull" computer system chip debuted in Beijing. The chip is the first computer system chip in China, and its power consumption is only one-tenth to one-fifth of its peers, but its performance is even stronger. At present, Lenovo, Hewlet

Analysis and Countermeasures of Street Lamp Failure

Timely resolution of street lamp failures can not only maintain urban infrastructure and city appearance, but also facilitate residents' lives and beautify the city. It can also establish a good investment environment for the city and promote the continuous development of two civilizations. Bas

How to choose LED flat panel TV

As the LCD market continues to mature, LED TVs are becoming mainstream. Although the current LED LCD TV is only a difference in backlight, the picture quality performance is not small. The "new" category that this flat-panel TV field has spawned has a great potential to replace traditiona