What is hi-fi ? and how it is different from pmpo in sound system?

Question

What is hi-fi ? and how it is different from pmpo in sound system?

Answer 1

Hi-fi stands for high fidelity that means sound which is real, free from  distortion or noise, it is  clean.

PMPO is Peak Music Power Output which gives no sense as it is a dubious term used to give power output of an amplifier,

Better check the RMS (Root Mean Square) Power of the amplifier before purchasing as that is the real output of an amplifier.

Answer 2

high fidelity sound system - equipment for the reproduction of sound with high fidelity

hi-fi

reproducer - an audio system that can reproduce and amplify signals to produce sound

PMPO

Peak Music Power Output (PMPO) (sometimes misused in advertising as Peak momentary performance output) is a much more dubious measure, of interest more to advertising copy-writers than to consumers. The term PMPO has never been defined in any standard but it is often taken to be the sum of some sort of peak power for each amplifier in a system.

Answer 3

High fidelity or hi-fi reproduction is a term used by home stereo listeners and home audio enthusiasts (audiophiles) to refer to high-quality reproduction of sound or images that are very faithful to the original master recording. High-fidelity equipment has minimal or unnoticeable amounts of noise and distortion and an accurate frequency response as set out in 1973 by the German Deutsches Institut für Normung (DIN) standard DIN 45500. The term was most widely used in this strict sense in the 1950s and 1960s; in subsequent decades, the term was applied more loosely to any mid-level stereo system. In the 2000s, hi-fi for expensive high-quality home-audio electronics was largely replaced with high-end audio.