If you look at the video,he's using Holmes Mississippi Bluesmaster solid state heads into matching 4X10 cabs with Celestions(most likely 35's).He also used Boss DD-2's,and his primary overdrive was an early 80's Westbury Tube Overdrive. Good luck finding any of this stuff,man-the Gjika amp was a fairly new addition to his rig at the time of "Powers of Ten",and used in the studio primarily.To me,the album sounds like the video.What a great player!