Thread: "Muddy" sound from mixed output
if you want to use your computer with modular buy an ES-8, that way you can send each signal separately to your computer and EQ to your hearts content there.
Also think about the frequency of your sounds and try to layer your sounds by octave range. This will result in a cleaner mix
Sometimes on filters you get different outputs like bandpass or highpass outputs which are good to use when you already have your bass sorted.