The Marshall 25/50 Silver Jubilee Model
To commemorate his 50 years in music and 25 years in the amplifier business, Jim Marshall introduced a limited edition collection of tube amps and cabinets in 1987. The amps, based on the 2203 and 2204 master volume designs, were known as the "25/50 Silver Jubilee" Series models. The products were distinctive, with their silver vinyl covering and chrome panels. They also featured a special commemorative plastic plate on each amp, a copy of which appears below.
As a special tie-in with the 25/50 theme, Marshall introduced a half-power mode so that the user could select either 25/50 watts on the 50 watt models, or 50/100 watts on the 100 watt models. This feature has been carried over into the JCM 900 series amps, but only on the 100 watt models.
The Jubilee Series amps also featured quiet switching between lead and rhythm channels. When the 1987 sales year ended, the special models were added into the existing JCM 800 line-up as the Custom Series (although they were sold in the traditional black vinyl after the Jubilee year was over). The model numbers for these amps were prefixed by a "JS" (Jubilee Series) after 1987.
It's interesting to note that Marshall did not produce a 100 watt combo model during their 25/50 anniversary year.
And of course, no story of the Silver Jubilee line would be complete without mentioning its strongest proponent. Guns N' Roses' lead guitarist, Slash, wholeheartedly endorses these amps. So much so, in fact, that Marshall reintroduced the 100 watt model (in black vinyl) as the Slash Limited Edition Signature amplifier in 1996.
|2550||50/25 watt lead head with 3-way gain switching (pull pot and 2-way footswitch)|
|2551A||4x12 1960A-style (angled) cabinet in silver vinyl, loaded with either Celestion G12-70's or G12-75's|
|2551AV||As above, only loaded with Celestion Vintage 30 speakers|
|2551B||4x12 1960B-style (bottom) cabinet in silver vinyl, loaded with either Celestion G12-70's or G12-75's|
|2551BV||As above, only loaded with Celestion Vintage 30 speakers|
|2553||50/25 watt lead head in small cabinet for mini stack|
|2554||50/25 watt lead combo with 1-12" Celestion speaker and same channel switching as 2550|
|2555||100/50 watt lead head with same channel switching as 2550|
|2556A||2x12 angled cabinet in silver vinyl, loaded with either Celestion G12-70's or G12-75's, and based on model 1966 mini stack to fit 2553 head|
|2556AV||As above, only loaded with Celestion Vintage 30's|
|2556B||2x12 bottom (straight) cabinet in silver vinyl, loaded with either Celestion G12-70's or G12-75's, and based on model 1966 mini stack to fit 2553 head|
|2556BV||As above, only loaded with Celestion Vintage 30's|
|2558||50/25 watt lead combo with 2-12" Celestion speakers and same channel switching as 2550|