This pedal is a custom one off I had made at Master Effects Pedals in Canada. It has variable slopes for each filter and features a high end FET clean boost offering over 30dB if clean boost in addition to the filters. It must be hooked up to a power supply no battery option. The boost and filters sound great. It’s powdercoated white with red,white, and blue knobs and matching engage lights. I paid 140 to have it made. My price includes shipping to the lower 48.