S888Wheel wrote:

The reproduction of a 6hz tone (I guess it could be called a tone)
would be utterly useless. It is completely inaudible.

Spoken by someone who obviously has no understanding of the pervasiveness of
low frequency content in real-world listening experiences. From past
experience, he's also impossible to educate because he thinks he knows it
all.

What are you trying to recreate at that point?

Reality.

If some CDs have information at 6hz
chances are there was something wrong that put it there.

Spoken by someone who obviously has no understanding of the pervasiveness of
low frequency content in real-world listening experiences. He's a vinyl
bigot and tube bigot as well. Three strikes. Real-world IQ test failed.