Well, the trusty old blues deluxe reissue went and got all weird on me. volume went WAY down, at first thought a tube. Pulled the back cover off and fired it up. All tubes have a healthy glow, no redplating. No sizzled anything on the pcb. My money is on the output transformer. When I strum a chord, I can hear it, but it's faint and sounds very far away. Any thoughts, advice etc greatly appreciated!