Live Sound: Sound Shaping: Using Graphic Equalizers To Optimize Your System

Pro Sound Web: A couple of years ago marked the 40th anniversary of Altec Lansing’s passive third-octave “continuous” equalizer that began modern sound system equalization. It didn’t start as a graphic equalizer, but rather, was three rows of eight knobs on third octave centers. A companion third-octave real-time analyzer, three rows of eight VU meters, provided a means to measure a sound system.