IF THE SUN REFUSES TO SHINE, IT MAY START TO DRIP The LSD is a recreation of the vintage uni-vibe units but with modern applications. if you want a deep throb, that doesn't lose volume, and with the option to select 3 different tone types via a rotary switch, this is the one for you! these modifications to the univibe make the LSD one of the most versatile univibes on the market.