I love Rock music on the Atma-Sphere more than SET or Push and Pull. I don't know why but I always feel The Atma seem to handle complex music easily and feel more relaxed when doing so even when your pushing the volumes to crazy levels. SET Amps don't seem to work well on this and push-pull amps all depend on power and how its implemented. Still, After all these years, the OTL from Atma seems to reign supreme over other amps iv tried. This applies to any genre of music. Not just audiophile recordings.