A souped-up take on the classic optical vibe circuit, EarthQuaker Devices' The Depths creates a lush, phasing pulse which creates a three-dimensional swirling sound that lives up to its name. This pedal has been optimized to work well with all types of instruments and pickup types. Its Voice and Throb controls help you achieve sounds from thin and subtle to warm and deep and everything in between. The Intensity and Rate help you go from a smooth, ultra-slow warble all the way to speedy, sharp bursts, taking the classic vibe sounds to a whole new level. The Level knob will allow you to boost the signal well above unity to make up for any perceived volume loss commonly found in vibe pedals. The Depths can be powered by 9V for warmer tones or up to 18V for a stiffer tone with more headroom and sparkle.