Case Display

The following is a list of domestic and foreign brands to illustrate their innovative application and the reasons the application: 1. Foreign well-known brand musical instrument amplifiers such as American Fisherman, American Fender, British Marshall, British Laney, German Roland, Yamaha; Japanese Sanyo, Chinese Mo San, Chinese Walker, Chinese Tang Nong, etc. 2. The design concept and application of the product maintain the sound design of traditional front-stage analog circuits and back-stage digital circuits. The circuit power supply is an independent power amplifier power supply of DC 40V to 0V, and the front channel is powered by multiple groups of isolated power supplies such as ±24V, ±14V, and 12V as well as a large-power lithium battery charging and discharging circuit power supply. This ensures the best sound reproduction effect from any sound source from the device input to the. When the city power and battery power are used, the noise is almost the same as the final output effect of the digital power amplifier because of the use of high digital power amplifier chips. At the same time, it ensures the real indoor and outdoor live performance effect of the true high-power original sound musical instrument amplifier. Among the brands, only Fisherman and Marshall retain the original sound design circuit, and the others are mainly based on the digital design circuit of the front and back stages. Because power supply power voltage is relatively simple and single, it can be easily solved by supplying power below 30V. However, Fisherman and Marshall can only use110V-240V city power to solve the large power voltage and current effects needed by their original sound circuits. Without exception, it can be by combining battery and city power to facilitate the long-term use of equipment outdoors. Our company's original sound musical instrument amplifiers have solved the convenience of using city power battery power together while retaining the original sound design circuit and the characteristics of the same volume.

Of products as Fisherman and Marshall. Moreover, the battery power supply time is 6-8 hours. The disadvantage is that it is heavier in the same type of speaker volume, and the weight reaches about 15KG. You can the simple push cart on the market to solve the problem of travel use. The following is a simple understanding of the equipment's terminology, so as to fully understand the and disadvantages of the product, in order to better understand the series of original sound musical instrument amplifiers, and welcome to put forward your valuable opinions and suggestions, our will respond and improve the product design according to the theory and practice. 1. The difference and application between analog circuits and digital circuits: 1) Analog circuits process continuously changing voltage and current signals. The advantage is: the signal is not easy to distort, and the signal can be easily restored to its original state. The is: the signal medium has a large volume, low density, and the basic noise generated by electronic components during operation, which is not easy to preserve and copy. 2) Digital circuits mainly process unchanged 0 and 1 digital signals. The advantage is: the signal medium has a small volume, high density, easy to, low noise (there is a basic noise). The disadvantage is: the signal source is from the analog signal to the digital encoding, decoding repeated changes in the signal and the final decoded signal still needs to be processed by analog power amplification to obtain a larger effective power. Therefore, it is easy to produce signal distortion in the process, and it is not possible to effectively restore the authenticity. The low power consumption characteristics of the digital power amplifier circuit are difficult to effectively obtain the real audio on certain physical characteristics.

Attached is the performance description of Class AB and Class D amplifiers： Utilizing the partial advantages of the three: Class A the lowest distortion rate, but has the smallest active dynamic output and high static power consumption. Class B has the highest dyn.