These are Tone control circuit using op amp - NE5532 or 4558 IC as low noise, with PCB layout, can adjust sound frequency and tone bass, treble, mid and..
This 50W OCL main amplifier circuit has high quality and economical,it is designed simple,easily created, electronics rookie.cheap when compared to other
The Hi Fi preamplifier circuit project to tune smooth bass-treble, with a very low distortion. Use low noise transistors Frequency response range 20Hz-20KHz [...]
The video amplifier splitter circuit, it is designed to take video signal is stronger. Compensate for the loss of signal, and is video splitter video [...]
NE5532 is in Hi-Fi audio system a lot. Why? Read this datasheet, Get pinout, spec, how to use. For example preamplifier with tone control.
If you are building a normally OCL power amplifier. You will hear sound "tlub.." on your speaker. That is not good for your expensive speaker. Also, You also feel annoyed…
This is small integrated amplifier at 20W using a TDA2004 or TDA2005 IC,use 12V supply for BCL car audio amps[...]