As a rule the older Purist CD would accomplish the break-in in about 48-72 hours. The newer disc will do it in about six hours. I have used both over the last three years and have been amazed by how well, and fast they work.
They have sound recorded on them that would not normally be encountered with playing Rock for 200 hours. I'm not sure what all of that noise is, but I have heard it work, and my conclusion is that the Purist CD does what it claims to do.
They have sound recorded on them that would not normally be encountered with playing Rock for 200 hours. I'm not sure what all of that noise is, but I have heard it work, and my conclusion is that the Purist CD does what it claims to do.