I have heard both and they are, in each in their own way, excellent. I have 100s of hours of experience with the 77 vs 10s of hours, so the comparison has a weighted bias; however, even so, I prefer the AMR. Its build quality is outstanding and the sound is resolving but not clinical. I prefer vinyl any day of the week and despite what many have written, I do not think the 77 gets me into the same headspace. Yet, it approximates better than the CD5 to me. I do not like clinical sound. I would not declare the Ayon clinical save for a head to head with a nice analogue rig, and in closer comparison - the 77.