I changed out the stock MB speaker for a Scumback H75-65 and what a difference it has made. Lost all of the harshness that I was dealing with. Really has opened up the amp. I spent a good hour last nite on the 10 watt setting and am really liking what I hear. Since I don't use the 90 watt setting in my band, the 65 watt handling power is more than enough. What a great speaker Jim makes.......