Marshall 2000 Schematics

The 2000 Lead and 2001 Bass heads are probably the loudest and most powerfull Marshall tube amps ever built. These amps were introduced in april 1981, around the same time as the JCM800 series. It isn’t clear if these amps were actually part of the JCM800 series. The schematics suggest they are, but you won’t find JCM800 printed on the amps.

Special high power version of the speaker cabinets were made for these beasts.

2000 Lead, 250W head

Schematic of the pre amp with 6x ECC83 Issue 2 (Marshall, 1981).

Schematic of the pre amp with 6x ECC83 Issue 3 (Marshall, 1986).

Schematic of the power amp and PSU with 6x 6550 Issue 2 (Marshall, 1981).

Schematic of the power amp and PSU with 6x 6550 Issue 3 (Marshall, 1986).

2001 Bass, 375W head

Schematic of the pre amp with 2x ECC81 & 3x ECC83 Issue 1 (Marshall, 1981).

Schematic of the pre amp with 2x ECC81 & 3x ECC83 Issue 2 (Marshall, 1986).

Schematic of the power amp and PSU with 8x 6550 Issue 2 (Marshall, 1981).

Schematic of the power amp and PSU with 8x 6550 Issue 3 (Marshall, 1986).

1940 Bass, 8×10″ 400W cabinet

This was the accompanying 8×10 cabinet for the 2001 Bass amp.

1982A Lead, 4×12″ 400W 16Ω angled front cabinet.

These high power Lead 1982 cabinets were made for the 2000 Lead head. They were fitted with four 12″ Celestion G12H100 T3595 16Ω speakers.

1982B Lead, 4×12″ 400W 16Ω straight front cabinet.

These high power Lead 1982 cabinets were made for the 2000 Lead head. They were fitted with four 12″ Celestion G12H100 T3595 16Ω speakers.