A: Valhalla Super Massive (ambient) or TAL-Dub-3 (character). Both free and legal.
There is no popular audio plugin or software simply called "H Delay." It is highly probable that you are looking for one of the following two products, and the search query got garbled: h delay getintopc link
No legitimate link exists on GetIntoPC. Any link from that domain offering H Delay is illegal and dangerous. A: Valhalla Super Massive (ambient) or TAL-Dub-3 (character)
If you manage to find the software through a corrected search, here is what you are getting: here is what you are getting: