The Galaxy Audio DS-EQ215 is not just a digital graphic and parametric equalizer (PEQ), it also has a stereo noise gate, crossover, delay, limiter, & muting, in addition to input and output metering Each 15 band EQ channel has a High and Low Pass Filter with slope & frequency control. PEQs provide great flexibility in setting the specific frequency for each EQ filter, in addition to it’s Q. They can be done by typing your settings, or making adjustments to the graph with the mouse. The DS-EQ215 comes with over a dozen preset EQ settings to choose from, or build your own and save it to a drive or the device.