Amplificatori audio

Audio Amplifiers are being used for decades. The main function of an audio amplifier is to reproduce the input audio signal at sound producing systems like speakers with desired volume and power levels. The frequency range of audio signals is between 20Hz and 20,000Hz. Hence, the audio amplifier must have good frequency response over the […]

More than eleven years after its publication on this website and an ever increasing success, the 3 - 5W Class-A Audio Amplifier has undergone some small modifications (the addition of R1, Q2, R6 and the substitution of Q4 with a Darlington transistor) capable of producing a major improvement.

How to upgrade a Quad 405-2 power amp to current standards

BuildAudioAmps

Do it yourself DIY 30 watt stereo amplifier circuit diagram and schematic design using Op amp ICs and other components. diy building of stereo amplfier

This is a mono 100-watt transistor amplifier circuit diagram. this circuit diagram can make 100 watts using one pair of transistors

This is an easy audio amplifier circuit diagram. this circuit runs with 12 voltage to 30 voltage. but here the output transformer

When it comes to sound quality, newest isn't always best. Paul Rigby looks at some of the vintage amplifiers that will bring out the best in your records.