You consistently claim that any recording - even a 78 - is salvageable when played on a high quality system.People here are very much missing the point ... because the recording is of low quality, everything, but everything about the playback system has to be on its best behaviour, otherwise the additional artifacts added in the playback would make this impossible to listen to - I've heard pretentious systems wreak havoc on these sorts of tracks, endlessly. What is remarkable is that when a rig totally gets out of the way then our hearing systems can separate the musical content from the media limitations - and this as a musical event will come alive, satisfyingly so.
Of course, this is another "stress test" recording - can a system allow the music within to emerge, or does the grunge completely drown it ...
Logically, if I play any recording on a low quality system that is "impossible to listen to", and record the result with a microphone, I have created a low quality recording that is "impossible to listen to". Therefore, some recordings can be impossible to listen to before we even start.