Marshall JCM2000 DSL Schematics

The JCM2000 DSL (Dual Super Lead) 50W & 100W heads were introduced in the summer of 1997. The DSL201 and DSL401 combos were introduced in 1998. The whole JCM2000 range was probably discontinued in 2012.

JCM2000 DSL50 Double Super Lead, 50W head

The DSL50 amps use 4x ECC83 and 2x EL34 tubes.

In 2008, the 85th birthday of Jim Marshall, the DSL50 was reissued as a head (model 1923) and a combo (model 1923C).

Schematic of the DSL50 main board, DL50-60-02 Issue 3, (Marshall, 1997).

Schematic of the DSL50 main board, DL50-60-02 Issue 7, (Marshall, 2003).

Schematic of the DSL50 channel switching circuit , DL50-61-00 Issue 1, (Marshall, 1997).

Schematic of the DSL50/DSL100 rear output board, JCM2-62-00 Issue 1, (Marshall, 1997).

Schematic of the DSL50/DSL100 rear output board, JCM2-62-02 Issue 2, (Marshall, 1997).

Schematic of the DSL50/DSL100 rear output board, JCM2-62-02 Issue 3, (Marshall, 2001).

Schematic of the DSL50 reverb & mains input, DL50-63-02 Issue 3, (Marshall, 1997).

Schematic of the DSL/TSL bias pot board, JCM2-64-00 Issue 1, (Marshall, 1997).

Bias instructions. The official Marshall biasing instructions for the JCM2000 DSL & TSL amps.

Owners manual for the DSL50 & DSL100 amps (1997).

Owners manual for the DSL50 & DSL100 amps (2004).

Photograph of a DSL50 head.

JCM2000 DSL100 Double Super Lead, 100W head

The DSL100 amps use 4x ECC83 and 4x EL34 tubes. In 2001, a 100 of the DSL100 heads were produced as custom “Orange Crunch” amps in orange vinyl. In 2005 a limited series of 200 DSL100 Silver heads were produced with accompanying 200 1960ASL 4×12″ Silver cabinets and 50 1960BSL 4×12″ Silver cabinets.

Schematic of the DSL100/TSL100 main board, JCM2-60-00 Issue 1, (Marshall, 1997).

Schematic of the DSL100 main board, JCM2-60-02 Issue 5, (Marshall, 1998).

Schematic of the DSL100 main board, JCM2-60-02 Issue 7, (Marshall, 2001).

Schematic of the DSL100 channel switching circuit, JCM2-61-00 Issue 1, (Marshall, 1997).

Schematic of the DSL100 channel switching circuit, JCM2-61-00 Issue 5, (Marshall, 2001).

Schematic of the DSL50/DSL100 rear output board, JCM2-62-00 Issue 1, (Marshall, 1997).

Schematic of the DSL50/DSL100 rear output board, JCM2-62-02 Issue 2, (Marshall, 1997).

Schematic of the DSL50/DSL100 rear output board, JCM2-62-02 Issue 3, (Marshall, 2001).

Schematic of the DSL100 reverb & mains input, JCM2-63-00 Issue 1, (Marshall, 1997).

Schematic of the DSL100 reverb & mains input, JCM2-63-02 Issue 6, (Marshall, 2001).

Schematic of the DSL100/TSL100 reverb & mains input, JCM2-63-02 Issue 7, (Marshall, 2005).

Schematic of the DSL/TSL bias pot board, JCM2-64-00 Issue 1, (Marshall, 1997).

Bias instructions. The official Marshall biasing instructions for the JCM2000 DSL & TSL amps.

Owners manual for the DSL50 & DSL100 amps (1997).

Owners manual for the DSL50 & DSL100 amps (2004).

Photograph of a DSL100 head.

Photograph of a red DSL100 head.

Photograph of a DSL100 Silver Issue head.

Photograph of a DSL100 Silver Issue half stack.

JCM2000 DSL201 Double Super Lead, 20W 1×12″ Combo

The DSL201 amps use 4x ECC83 and 2x EL84 tubes. The speaker is a 12″ Celestion Gold Back 16Ω speaker.

Schematics of the DSL201 amp (2 pages), DL20-60-02 Issue 5, (Marshall, 1999).

Bias instructions. Biasing instructions for the DSL201 & DSL401 amps, DL40-68-00 Issue 2, (Marshall, 1998).

Owners manual for the DSL201 & DSL401 amps.

Photograph of a DSL201 combo.

JCM2000 DSL401 Double Super Lead, 40W 1×12″ Combo

The DSL401 amps use 4x ECC83 and 4x EL84 tubes. The early DSL401 amps were factory fitted with EI EL84 tubes. Most of the time Marshall used Chinese Shuguang 12AX7 tubes in these amps. Occasionally I’ve spotted some Philips ECG JAN 12AX7 tubes being used. The speaker is a 12″ Celestion Gold Back 16Ω speaker.

Schematics of the DSL401 amp (2 pages), DL40-60-02 Issue 9, (Marshall, 2002).

Bias instructions. Biasing instructions for the DSL201 & DSL401 amps, DL40-68-00 Issue 2, (Marshall, 1998).

Owners manual for the DSL201 & DSL401 amps.

Photograph of a DSL401 combo.