Intelligent equalisation. The dbx 530 is a 500 Series parametric EQ with exceptional versatility. Three fully-parametric overlapping bands (High, Mid, and Low) provide you with intuitive control and sound-shaping capabilities. With up to 15dB of cut or boost for precise filtering and control of the frequency bandwidth, you can equalize your sound with precision. The 530 features a unique Infinite Notch mode for each band that can be engaged independently without affecting the operation of the other bands. This is ideal for removing unwanted signals and frequencies such as feedback or resonance. And with the ability to switch from peaking to shelving operation for the Low and High bands, shaping your sound has never been easier.