Line voltage instabilities and deviationsraise odd harmonics, which do not
exist at the live perfomance. That is outstanding problem of digital devices.
Results are: unnatural, irritating and tiring sound
AC instabilities and deviations also provoke crossover distortions, which
spoil musical signals polarity and phase. It leads to: spatial
(3D) loss with stage performers misplacements , loss of fine and subtle
musical details and nuances which are the essence of music (microdynamic loss).
To hear "everything" it is necessary to step up the volume*9).
Line noisereduces and harms musical signal, causing unclear (muddy) tonal
picture (nontransparency).
Consumers safety and devices protection are innsuficient.
Unstable AC frequency causes: tape recorders and turntablestone tremble; digital playersraised jitter and imprecise reading; computersblocades and hard disc errors…