a question i´ve been waitin´ a very long time to tell

Hi im ronny a 28 year old student from berlin. I love ur music a very long time and bought most of ur releases and if i had heard toscas dehli9 cd 1 track3 "gute laune" feat. tweed i recognized a 50hz sinus - noise very low and quiet but noticeable. please tell us all the truth what is the meaning of it?
im thankfull for all the time with ur music.
with a friendly handshake

possible reply by peter kruder : if you listen really carefully you can hear a lot of music in our records (preferably between 25 Hz and 43,99 HZ) kind regards Boxsie@home.nl