I play an SWR Super Redhead with an WM-15 extension cab with my P-bass. There are times when I could use a rounder Ampeg like tone in the midrange rather than the SWR midrange zing. What is the best way to achieve this transformation? Can it be done with an external EQ or a DI?. It doesn't seem like using an amp modeler would give me the sound that I am looking for at volume.