Marshall JCM 800 2210 100 watt head. The most versatile of the JCM 800 line. Features two foot switchable channels, reverb, and an effects loop. Very useful for getting the best sound out of your pedals. This is a 1983 as designated by the R in the serial number. The entire amp was just went over and checked out perfectly. The high voltage and bias supply filter capacitors were replaced a few years back so they are in good order. A new quad of matched JJ EL34 power tubes were just installed and biased properly. Preamp tubes are vintage RCA in V1-V3. V4 and V5 are generic 12AX7s. This originally was fitted with 6550s so a few resistors were changed in order to properly facilitate El34s. Otherwise the circuitry is free of modifications beyond the original schematic and all work has been done professionally. Original Dagnall transformers as well. See pictures. This amp functions as it should with no issues. Reverb on both channels and all functions work well. Cosmetically this amp is in overall good shape but does show some signs of wear from normal use. This is the best bang for your buck. Don't take chances on beat up and abused equipment that will fail prematurely, this is a reliable, serviced amp. Generic two button "Marshall style" foot-switch included. Will pack like a tank and ship via UPS, fully insured via Reverb Safe Shipping. Discounted local cash pickup also available. Please ask any questions you may have prior to purchase.