Indeed. It must be nice not to have to worry about fast transients, surges and ring waves on I/O in audio. Then you can get away with a pseudo star ground.
As an audiophile, I take this as Rotel cutting corners and removing the musicality of ring waves.
Yes, Ken. Ring waves are indeed very musical. If you were connected to a ring wave generator, the Violent Femmes could use you as the protagonist on this Oedipal tune.