What is RIAA Equalization in a Phono section?
FONTE: http://stereos.about.com/od/gtgtturntables/a/riaa_eq.htm RIAA equalization is a specification for the correct playback of vinyl records, established by the Recording Industry Association of America. The purpose of the equalization is to permit greater playback times, and improve sound quality. RIAA equalization is what takes place at the phono input of most stereo amplifiers. Since many modern amplifiers lack the phono input, many manufacturers make a special preamplifier which will adapt a magnetic cartridge to a standard input, and implement the RIAA equalization curve separately from the main amplifier. The RIAA equalization curve has operated as a global industry standard for the recording and playback of vinyl records since 1954. At points in the history of vinyl playback, there have been over 100 combinations of equalization in use, the main ones being AES, and FFRR. If you were to play a pre-WWII record through a modern preamp, you would be effectively playing it with a l
