Released 2007, the RE-20 is as close to a reissue as Roland/Boss has ever come. The RE-20 emulates the legendary Roland RE-201 that was released 1973 and proved very successful throughout the 70s. It is in fact still very popular and getting hold of the original will set you back a lot of money.
The original RE-201 was a tape echo. This means that the sound was recorded to a looping tape and replayed to create an echo effect. The RE-20 emulates the RE-201 by using COSM modeling. The 12 position mode selector is identical to the original switch and so are most of the other controls too. Due to digital electronics,the RE-20s delay time is longer than was possible with the original Space Echo.