This is an excellent example of a classic tape echo unit. The RE-301 chorus echo was the first Roland model to add the lush, analog chorus effect that was able to be used at the same time as or independently from the delay function. The RE-301 added a new “Sound on Sound” mode, allowing users to loop phrases and then record additional layers on top- basically an early loop function. This unit is cosmetically very clean and has been fully overhauled by our in house technician and ready to send you into outer space.