This 1967 Pro Reverb shows minor signs of previous wear and still looks great. The Pro serves as a nice midway point between the Deluxe and Twin Reverb, having a bigger sonic footprint than the Deluxe, but not overly loud for use with smaller stages. Internally, it has changed electrolytic caps, screen grid and grid stopper resistors on the power tubes, along with the 3 prong cable. The reverb tank and bag have been changed as well. Otherwise, the preamp components are all still original, so the blackface sound is still firmly in tact - this amp sounds excellent!