hey i need help people im having real trouble with my bass (sub-bass) right now i dont know if it was so bad before but bassicaly im trying to use a sine wave or a triangle wave for my bass in THOR and its going through a low pass filter which is turned right down to the bottom. im getting this whistling sound coming from the bass is this normal??? i figured it sounds like sucha high pitch whistle that if i use and equalizer and cut off the top from 10khz then it should disappear but this is not the case, it only disappears when i remove a big chunk around just under 70hz but obvious this removes the "bass" aswell are my speakers fucked or is this normal?? anybody good at reason???