Same way to handle the traditional graphic equalizer with slide volume.Although it is a normal analog effector, the parameter control of the PA-1QB is a digital circuitry that accurately stores and processes the state of various parameters digitally.This results in a revolutionary product that allows for real-time control with preset and MIDI while being an analog effector.After more than 10 years of concept, we have gone through trial and error, and finally completed PA-1QB.The PA-1QB effect combines the rich sound of analog and digital operability, and the effects of this two in a higher dimension.Experience the latest sound and operability.