The dbx 530 Parametric EQ offers a unique degree of equalization flexibility in the popular 500 Series format. Based upon the classic dbx 905, the dbx 530 is an uncompromising equalizer offering true, fully parametric operation of all three filter bands! dbx has a much-heralded history with modular processors dating back to our 900 Series, and the dbx 530 continues that tradition. - Based on the classic dbx 905 - 3-band parametric EQ - Selectable bell or shelf type filters on low and high frequency bands - Adjustable Q on each band