I have heard both but not a direct comparison, different front ends, and weeks apart, so take that into account with my comments. Heard the Sasha a few times and prefered the Sasha of these two because they seemed to be a slightly less veiled, faster and more 3d sounding. I only heard it briefly but I remember the Atlantis being warmer and richer but seemed to be hard on the ears at higher volume but the dealer switched the front end and it was vastly improved. Both very good but neither one suited me. I would say your equipment and room will be huge factors in how they suit you.
