High-end audio is a class of consumer home audio equipment marketed to on the basis of high price or quality, and esoteric or novel sound reproduction technologies. The term can refer simply to the price, to the build quality of the components, or to the subjective or objective quality of sound reproduction.
The human sense of hearing is subjective and difficult to define. Psychoacoustics is a division of acoustics that studies this field.
Measurements can be deceiving; high or low figures of certain technical characteristics do not necessarily offer a good representation of how the equipment sounds to each person. For example, some tube amplifier produce greater amounts of total harmonic distortion, but this type of distortion (2nd harmonic) is not as disturbing to the ear as the higher-order distortions produced by poorly designed transistor equipment.
The validity of certain products is often questioned. These include accessories such as utilizing exotic materials (such as oxygen-free copper) and construction geometries, cable stands for lifting them off the floor (as a way to control mechanically induced vibrations), connectors, sprays and other tweaks. Cables, Interconnects and Other Stuff – The Truth. Sound.westhost.com.
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