Bringing together a formidable seven-knob layout with controls like delay, regen, and morph (modulation) which give a wide spread of echo-y, delayed tones for the three Modulation, Studio Plate, and Shimmer modes, the Keeley Caverns Reverb/Delay is an entire underground network of dark, sparkly tone. Capable of operating as a traditional-style reven in the Studio mode with pristine results, this pedal really shines in the Modulation and Shimmer modes for experimental, stretched, and enormous delayed reverb sound.