I am tired of wimpy, whimsical envelope filters. I had a DOD FX25, which I could get a good fat response from when I dug in to my bass, but it killed the low end and was a bit hard to manage. I have an older model Qtron and I can only coax the funk out of it when I play ever so gingerly. When I dig in the mix is 80% bass, 10% filter, 10% me sobbing in frustration. Help me out here, do I need a blend knob or do I just need to do sone tweaking?