astru"I believe the point of the settings is that the PCM format is not lossless, and Marantz provides the option to play with different settings because there is no agreed way to reconstruct the original acoustic signal."
You do not know what you are talking about PCM audio is a clearly established, defined and standardized format there is absolute, complete, and universal agreement about how to recover an analog signal from a PCM data stream and this recovery can be done as has been demonstrated completely error free so it is absolutely bit-perfect "lossless" and there is no debate, uncertainty, or alternative to this scientifically developed protocol so you might want to check your research, references, and facts.