While both Hi Fi and Stereo contribute to the overall quality of sound, they do so in different ways. Stereo enhances the spatial aspect of the sound, giving it depth and direction. Hi Fi, on the other hand, focuses on the precision and detail of the sound, striving to maintain the integrity of the original recording.

The volume of sound that a stereo amplifier produces depends on its power, measured in watts. Thus high powered amplifiers produce better and clearer sounds than those with lower power. On the other hand, the AV receiver is meant to receive both audio and video sounds and its output does not depend on its power.