What we've said up to now with regards to sinusoids is a fundamental truth upon which we will base the rest of our sound reality. An aspect which contributes a lot to the characteristics of sound is its harmonics.

Electronics history has been marked by the introduction of components that have opened the doors to new solutions and technology. The real revolution took place with the transistor, preceded by the diode, which marked the definitive birth of digital electronics, leading to the introduction of microprocessors.