Fishman Model: MAT-AX2Fishman Prefix Series, Prefix - Basic EQ
The Prefix provides active bass, contour (wide range semi-parametric), treble & volume controls with a low-battery LED. The contour allows you to boost or cut the frequencies you choose. This flexibility allows you to add brilliance when needed, scoop out harsh mid-range frequencies, or reduce feedback and unwanted resonance (2.437'' x 3.812'')