Up for sale, a 1978 Marshall JMP 2204 Master Model 50w head and matching 1960A 4x12 speaker cabinet in exceptional condition and in perfect working order. Produced in the proverbial "sweet spot" for late '70s Master Model JMPs, this 2204 features cascading preamp gain and the kind of rich, muscly, ripping textures synonymous with AC/DC's renaissance. At 50 watts, the amp has plenty of power and crunch, and the Master Volume is an infinitely usable tool for creating natural sounding drive at a variety of volumes. Conversely, turning the Master to 10 and dialing in the Preamp Volume to taste yields more Plexi-like textures.
The circuit is very original and serviced by Andy Marshall at THD, with stock Drake transformers that have cleanly stamped model numbers on the bells. The chart on the chassis has a handwritten February, 1978 test date. The chassis itself is quite clean, with a very presentable faceplate and all original knobs intact. The back plate on the chassis is no longer present, and the pair of speaker outs are labeled, along with two additional 1/4" jacks added to accommodate an effects loop. The tube complement includes a pair of Ruby 6L6GC power tubes and Groove Tubes valves in the preamp.
The speaker cabinet is loaded with the original Celestion G12M T1221 "Blackback" 12" speaker quad, and the speakers each have clean "MK1" date stamps on the frames, translating to December of 1977.
The original black elephant tolex is extremely well-kept on both the head and cab, with the original pair of large plastic white Marshall logos as well as black plastic corners and handles. All of the original piping is intact, along with the original sprung amp feet.