JVC SEA Graphic Equalizers

JVC call their equalizers Sound Effect Amplifiers (S.E.A.), which they developed in 1966. The early designs divided the audio spectrum into five (or seven) bands, and each band has boost and cut facility. In 1975 JVC also introduced a new transistor inductor (gyrator) which did not use coils and reduced the total harmonic distortion to below 0.003 %. This little booklet explains how the graphic equalizer compares to bass and treble controls. It shows the frequency spectrum of common musical instruments, and how the S.E.A graphic equalizer could be used to remedy for poor room acoustics. If you are doing so already, one can also remix audio tapes to add more clarity and boost any lost frequencies. If you have managed to get one of these in the pre-used market, the booklet also shows how to connect it to your hi-fi system. Finally, it also shows some of the features of the SEA-40, SEA-60, SEA-70, SEA-80.

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