need some help setting up hi fi audio

hello there i picked up my hi fi stuff the other week and i want that clean compressed mustang 131 sound
at the moment its like motor mouth maul fills the speaker and bass but i want that real hi fi sound

im running a stickman built galaxy 2917 direct audio injected
benringer pro studio audio setup driving the galaxy

anyone know how to fine tune the beringer components i messed with it some and cleaned it up but its not giving me the real compressed sound im after

please reply