On Thu, 1 Apr 2010 21:43:05 -0400, Joe Subich, W4TV wrote: >My CM-500 is very "muddy" with only the bottom two bands of >TX EQ cut to the maximum. I also need to reduce 200 Hz and >boost 1600/2400/3200 Hz. I suspect there's something wrong with the CM500 you have. 73, Jim K9YC