Also an answer from Korg to Roland with their space echo series
The name 'stage' is very similar to 'space'
However, the Stage Echo is a very robust and strong machine. Also Japanese quality just like Roland
and completely with its own character, also in terms of sound.
I think the Stage Echos have the tightest sounding feedback, they continue to give very nice feedback, it's like a 'loop' that you hear from a sampler.
The SE-300 has fewer echo times than the SE-500. However, the SE-300 does have a spring reverb.