I have a GK 400 RB II. I love it's tone and have tried using the line out though i do not like the line out tone. I like to use the GK at home and small jam sessions. Sometimes I need more output. I have a power amp and have tried using a line out to the input of the power amp but found it sounds sterile. I would like to use a D.I. with a speaker level input to capture the overall tone of the amp. Has anyone here used one? How did it work out for you? Thanks!