This amp was one of a series of amps built in the year of Jim Marshall's 25th business
jubilee in 1987. It was a limited edition collection of tube amps and cabinets to
commemorate Marshall's 50 years in music and 25 years in the amplifier business.
The amps were based on the 2203 and 2204 master models but with silver vinyl covering
and chrome panels, silver rivets and control buttons.
The limited series in silver vinyl was only available to the end of 1987, after that the amps were produced in the standard coloring but with similar technical features.
This amp has a total of 100 watts switchable to a half-power mode with 50 watts. It has a rhythm and lead channel which can be selected with a footswitch. The 2555 model has the standard cabinet size and is the only 100w model in the Jubilee series. It uses 3 ECC83 and 4 EL34 tubes.