Hi-Fi Color
From ColorWiki
Any process that increases the color gamut of an output imaging device (printer).
Usually refers to adding extra inks and plates to the traditional CMYK set to improve the color gamut of offset lithography. Examples of popular Hi-Fi methods are: the Küppers approach (CMYK+RGB); Pantone(r) Hexachrome (CMYK + Orange & Green); and MaxCMY (CMYK + extra CMY).
See Also
