The circuit was designed to be able to amplify or attenuate some regions of the acoustic spectrum with the use of a graphic equalizer. Graphic Equalizer – a common type of equalizer considered as a ...

There was a time when any hi-fi worth its salt had a little row of sliders on its front panel, a graphic equalizer. On a hi-fi these arrays of variable gain notch filters were little more than a fancy ...

The main component of this 3 band graphic equalizer is LM833 produced by National Semiconductor. LM833 has a very low noise, and a band / amplifier of 15MHz and a rise speed of 7V/s. The cut points ...

There's a school of thought that believes speakers should be heard and not seen; to that, BluTiger says "rubbish!" They've taken a set of surround-sound computer speakers and strapped a couple of ...

The five band graphic equalizer described here was designed to connect between two video recorders, so that the frequency response can be corrected somewhat. A problem I frequently encounter when ...

Careful planning and a steady hand let [Leo Rampen] fit everything he needed to build a graphic equalizer display on his LED wall sign. There’s a lot of components that needed to fit on this board, ...