Enhancer, exciter and tube amplifier – what is in common?

An exciter (also called Exciter), also called harmonic exciter, psychoacoustic processor, enhancer and acoustic aural exciter, is a processing device used to harmoniously synthesize high-frequency signals using thin harmonic distortion.
This harmonic synthesis is to create higher harmonics based on lower signal frequencies. Usually the noise is present in different frequency bands in unequal quantities, and the harmonics obtained from the pure frequency band will be clearer. Less commonly, exciters (enhancers) are used to synthesize low-frequency harmonics, in order to imitate deep bass. Continue reading →