I have to agree that test CDs are boring. I had one with a track of an army tank, now that was some fabulous listening. And, I knew my system was accurate because last time I stood next to a moving tank it sounded just like that. 8^)
Then there is the: 32hz, etc, etc...............tone pitches. Again, what a blast.
Then there is the: 32hz, etc, etc...............tone pitches. Again, what a blast.