It should say something like this:
"This disc contains frequencies which extend into the subharmonic level. Please adjust your system to avoid damaging your speakers".
Reason being that this CD has the unusual distinction of containing a remarkable amount of information approaching or exceeding the lower range of human hearing. This can be very dangerous to speakers/subwoofers in bass-reflex (ported) enclosures, if a subsonic filter is not being used. On a regular system without a subwoofer, these frequencies only register as a low hum in the background, but on a subwoofer, they cause the air around you to shudder, as well as making your sub move like crazy...
Needless to say, this album isn't very good to listen to in a car. I only played the first track, but most of the detail way drowned out by the constant low-frequency sine waves. There is one frequency through out the first track that, at normal listening level, was uncomfortable on the ears in my car, not to mention that it also tickles your lungs and nostrils. Quite impressive!
"This disc contains frequencies which extend into the subharmonic level. Please adjust your system to avoid damaging your speakers".
Reason being that this CD has the unusual distinction of containing a remarkable amount of information approaching or exceeding the lower range of human hearing. This can be very dangerous to speakers/subwoofers in bass-reflex (ported) enclosures, if a subsonic filter is not being used. On a regular system without a subwoofer, these frequencies only register as a low hum in the background, but on a subwoofer, they cause the air around you to shudder, as well as making your sub move like crazy...
Needless to say, this album isn't very good to listen to in a car. I only played the first track, but most of the detail way drowned out by the constant low-frequency sine waves. There is one frequency through out the first track that, at normal listening level, was uncomfortable on the ears in my car, not to mention that it also tickles your lungs and nostrils. Quite impressive!