#11 System should exhibit "slam" when called for.
This is different than punchy bass from a sub and I saw no mention of it.
#12 System should be able to play back undistorted at the original level, in its intended environment, whether it be in the front row at the Hollywood Bowl, at the California Jam in Ontario, or at the studio mix-down.
If you want to "be there" you need to hear it as if you were there.