I have one 15" sub and it equals 100%! I was listening to Peter Gabriel Up (SACD) in 2 channel (I prefer the 2 channel over the multichannel in this offering) and it absolutely blows me away. In my younger days, drug enhanced listening sessions could not even compare with the aural euphoria I experienced.
But then everything is very subjective in this audio game. One man's garbage is another man's treasure.
I'm sure there are many levels of bliss in the quality of hardware and quality of recordings, but there is absolutely NO BLISS without music!!!