it seems that my ear is incapable of hearing mids. on my ampeg, if i put all of tone knobs in the center, and move the mid knob around...i don't really here much of a change. it sounds just like treble to me. it may have something to do with my fender p-bass,because it's not the "midiest" bass around. . it seems,especially here, that mids are an important part of tone, but i can't hear them well. could someone post sounds clips or something with contrasting tones to help me out?