The Eventide H9 Core Harmonizer Effects Processer is an affordable H9 effects pedal, which can be customised by purchasing the effect algorithms you want from Eventide. The H9 Core contains only 1 algorithm, allowing you to incorporate your own your plugins for optimal versatility. It is perfect for a musician who wants to use and purchase the effects that only they want. The H9 core comes preloaded with 25 presets from the original H910/H949 Harmonizers, allowing you to experiment with the different effects. Customise the pedal the way you want by adding additional effects that can be purchased via the H9 Control app.