The JHS Effect Pedals - 3 Series Reverb is a versatile unit made just up the road in Kansas City. Achieve a variety of reverb effects from small room sweetening to long reverberating tone-tails. The Pre-Delay switch allows for some separation in time from the dry signal giving slap-back style ambiance. Requiring the industry standard 9v, center negative power, this new offering from JHS is priced perfectly for a beginner and carries professional quality tone.