I was recording myself the otherday with my acoustic. 3 mics. XY stereo on guitar and vocal mic. I used 80hz roll off on all the trackand found that it really made things cleaner and clearer than with out it. Then out of curiousity, i recorded the same thing without the 80Hz and it seemed cloudy due to extra lows. So i used an eq plug in with 80Hz roll with the same amount of decrease in gain per octave and it just didnt seem to have the same clarity..weird. why?