Iâve had my eye on the Boss RE 20 Space Echo, which is based on the classic Roland RE201 tape echo, for a while. The RE 20 Space Echo basically reproduces many of the effects that are possible using an analog tape delay, but does it in a reliable, affordable digital package. This video shows a Moog Voyager running through the Space Echo and some of the effects that are possible. If anybody has experience modulating the tap input with a CV trigger, let me know in the comments!