Demora has a delay range of 20-micro-seconds to 10-seconds. Unfortunately, the documentation on all of the Aira modules is abysmal. This was handy for me, to 'see' what was going on. I absolutely love the no menu hands-on immediacy.
https://youtu.be/YfMshV_03Aw
p.s., was discussing the merits of spring reverb with Richard Nicol (Pittsburgh Modular) last night during a 'drone' live stream, and he disclosed that they are coming out with one soon-ish, that will have a built in 'Tilt EQ', and feedback.