Solid State 100 watts of pure grunt !!! All the power you will ever need, anywhere ! No idea how old it is, but apart from the odd damage to the vinyl on the speaker cab (see photo for worst one) is in great condition and works great. Clean channel and Vacuum Tube Distortion channel, with foot switch input. (foot switch not included) Heaps of variation with treble, Mid and bass eq knobs. Line out and effects loop in back. 4 ohm and 8 ohm speaker inputs. Built in Reverb. Has a little bit of noise in the treble pot in the distortion channel, but not a lot, and otherwise works great. Blow the roof off most places !!! 300 watt quad cab with 4 x 12 inch speakers. I am only the second owner. Bought it second hand quite a while ago, but no longer need a big and powerful amp like this anymore, otherwise, I would still use it. Beats most others hands down. Will only put a Buy Now price on if someone is really keen to buy now.