Mackie Adaptive Q™ Filtering

The modern constant-Q filter is superb at eliminating feedback frequencies, without affecting the overall tonal characteristics of most sound systems.

However, when adjacent filters are used for the tonal shaping of a system, artifacts are often created that prove detrimental to the overall sound quality.

When used to cut or boost adjacent frequencies, the QUAD EQ's Adaptive-Q filters compensate for this type of anomaly, creating a smoother, more musical and artifact-free curve.