For sale is a used 1979 Marshall JMP 2203 100 Watt Tube Guitar Head. If you are looking at this listing, then you already know this is one of the greatest amps that Marshall has ever made. Hands down my favorite, as it delivers that raw and rude tone you would expect from a late 70's era Marshall. This amp is in good condition with normal wear that would expect from a 39-year-old amp. There are dings in the tolex and a couple of spots that have been touched up. At one point it looks as though the amp had some sort of mod done to it. The mod has since been removed and everything does look original. We are missing the back grill cover. The EL34 tubes have plenty of life left in them.