Production of high-quality combined amplifier
With the development of the domestic economy, people have turned their attention from the combination of sound to the formation of home theaters. The core of the home theater is the surround sound system. China has entered the AC-3 era, but it must match the speaker design, otherwise it will be difficult to show its superiority. The domestic Dolby directional logic surround decoder is the first to launch YAMAHA YSS-215, etc. Decoding chip, but its price remains high. M69032 is cheap, but the resolution is average. All in all, with Dolby surround sound, you must invest a lot of signal cables from the hardware, it will make your listening room inferior, if you have not the ability to purchase the above equipment, you may wish to try the SRS system to make two The speaker reproduces the three-dimensional surround sound effect. The SRS system is based on the principle of bionics, according to the structure of the human ear listening system to produce the listening rhythm, after proper processing, two speakers are used to achieve a three-dimensional surround sound field. The high-quality power amplifier introduced in this article is based on SEAKO / NPC's SRS5250S IC chip, coupled with 250WX2 dual ultra-linear, pure DC power amplifier without negative feedback to form a low-cost, high-quality home theater.
Circuit principle:
Component selection:
Hongkong Onice Limited , https://www.osbvapepen.com