Some content is obviousely intended, created. Some content is obviousely from human voices and the mixers simply didnt HP the mics. Some is obviousely a bi product from creating sounds, not the sound itself... like a snair or high hat electronicly generated that has subsonic effects that weren't removed. I don't care. I LOVE it all. I always have. I have only had a huge HT for about 2 years now and barely had the huge van as it's only survived a week or two a few times before I smashed coils fr