Hello Friends, in this post I make a VU meter using LM3915N-1 IC. You can Connect this VU meter input of any amplifier. You can power up this VU meter with a 12V power supply. Using the 100K preset, you can easily adjust the LED …

Hello Friends, In this post I make a 2.1 amplifier, which can deliver up to 19W output for the subwoofer and 5W+5W for output speakers at 4Ω. The sound quality of this amplifier is very good. All frequencies are very clear, Low a…

Hello Friends, in this post I make a 3 band stereo tone control. For this tone control I have used NE5532 IC. But in place of NE5532 IC, you can also use TL072 or 4558D IC. In this tone control, you can control the high mid and …

Hello Friends, in this post I made a flat frequency Stereo amplifier, which can deliver up to 68W output per channel at 4Ω. For this amplifier, I use LM3886 IC. This IC is specially designed for active studio monitors, for its lo…

Hello Friends, In this post I make a 2.1 amplifier, which can deliver up to 40W output for the subwoofer and 15W+15W for output speakers at 4Ω. The sound quality of this amplifier is very good. All frequencies are very clear, Low…

Hello Friends, In this post I make a 100W Mono subwoofer amplifier using TDA7294 IC, which can deliver up to 90W output at 4Ω ±35V. For the low pass filter of this amplifier, I have used NE5532 IC. But in place of NE5532, you can…

Hello Friends, in this post I make a Bass booster. You can use this b ass booster with any amplifier. This b ass booster can increase the bass up to 2X. For this b ass booster , I have used NE5532 IC. But in place of NE5532 IC,…

This is a 2-band stereo tone control that has excellent quality sound. In this tone control, you can control the high and low frequencies. The high frequency is very clear and the low frequency is also good. I have used this tone…

Hello Friends, In this post I make a 100W mono amplifier using a pair of 2SC5200 & 2SA1943 Transistors. which can deliver up to 70W output at 8Ω ±45V and 140W output at 4Ω ±42V. For designing my PCB, I used EasyEda online so…

Hello guys, in this post I make Quad bridge 4 channel amplifier, which can deliver up to 49 watt output per channel at 4 Ω . For this amplifier I use TDA7386 IC but you can use TDA7388 IC instead of Tda7386 IC. But if you use TDA…