This Kinkilin has EXP/CV control jacks for delay time, feedback, noise, rate, modulation amount and mix, the extra toggles are to assign both the dry and delay voice to the mix cv. In the video demo of it, the ehx 8 steps is feeding a bandwidth that is controlling the feedback and the delay time, while a broadcast is into the mix cv jack. All the cv inputs are independent so you can use only one at a given time, 2 or 3, all of them or none.