The Flamma Ekoverb features three combinations of delay and reverb effects that consist of a Reverse Delay/Swell Reverb setting, Analog Echo Delay/Mod Reverb, and a classic Analog Delay/Shimmer Reverb combination. The level and tone of the delay and reverb can be modified as well as the timing and feedback of the delay or the decay and pre-delay of the reverb. This lets you set the delay or reverb effect of each setting to maximum volume or completely off, allowing you to only use either the delay or reverb effect.