This Gibson GA-20 looks wonderful for it's age! The circuit has octal preamp tubes, which make for a unique midrange-y sound that gives the amp a nice roar when you crank it up. The power cord and electrolytic caps have been changed, along with the original wax coupling caps swapped for modern equivalents. The Jensen P12R from '51 is still present, though due to the design of the baffle clearance you might hear slight cone rub. The original handle has been changed as well.