70W Stereo Audio Amplifier Circuit based STA550


Posted on Feb 6, 2014

This is a stereo amplifier circuit diagram. The amplifier will produce stereo output channel with the power audio output can reach up to 70W for each channel. The amplifier built based great amplifier chip STA550 from STMicroelectronics. Take a note that this amplifier is a bridge amplifier, the speaker`s terminal should not connected to the groun


70W Stereo Audio Amplifier Circuit based STA550
Click here to download the full size of the above Circuit.

d line. An audio amplifier is an electronic amplifier that amplifies low-power audio signals (signals composed primarily of frequencies between 20 - 20 000 Hz, the human range of hearing) to a level suitable for driving loudspeakers and is the final stage in a typical audio playback chain. The preceding stages in such a chain are low power audio amplifiers which perform tasks like pre-amplification, equalization, tone control, mixing/effects, or audio sources like record players, CD players, and cassette players. Most audio amplifiers require these low-level inputs to adhere to line levels. While the input signal to an audio amplifier may measure only a few hundred microwatts, its output may be tens, hundreds, or thousands of watts. More explanation about power audio amplifier can be found at wikipedia. org This is a video tutorial about how to a very simple audio amplifier based on the LM386 amplifier chip. It can be built for less than $20 (or might be less than $8 in some countries) and used to amplify any low level audio signal including a guitar, bass or mp3 player.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    1 to 5 Video splitter
    White LEDs Flashlight
    tda2005 car audio amplifier circuit diagram project
    bi directional level shifter
    1RE30 DATA TRANSMISSION USING LASER
    BarGraph Ccts
    Simple Audio Amplifier Circuit Using LM386 PCB
    Light Dark switch activated relay circuits
    serendipity
    Boosters Are Not Buffers
    PIC12F629 based IR decoder
    BA313 with ALC circuit diagram of sound recording



    Top