Today I got out my RKII and hooked up to my cab and fired her up.......Nothing. Looked in the back and noticed I had the speaker cable in B section instead of the A. Plugged it back in the A. And now I only hear a vary faint cackle. I double checked and rechecked all my settings made sure the channels were assigned to A. Checked the fuse, swapped cords, cabs. etc etc. My thoughts are the tranny.