Marshall DBS Schematics
The DBS (Dynamic Bass System) range was introduced in 1994 and discontinued in 2000. These powerful bassguitar amps featured the ability to deliver an incredible peak power. They were produced as heads with separate cabinets and as combos. The preamp features an ECC83/12AX7 tube.
DBS 7200, 200W head
This amp was in production from 1994 up to 2000.
Owners manual for the DBS 7200.
Schematic of the pre amp part A, 7111-60-0A Issue 2, (Marshall, 1994).
Schematic of the pre amp part B, 7111-60-0B Issue 3, (Marshall, 1994).
Schematic of the pre amp part C, 7111-60-0C Issue 3, (Marshall, 1994).
Schematic of the power amp, 7111-61-02 Issue 3, (Marshall, 1994).
Schematic of the graphic EQ, 7111-62-02 Issue 1, (Marshall, 1994).
Schematic of the PSU, 7111-63-02 Issue 2, (Marshall, 1994).
Schematic of the DI output, 7111-64-02 Issue 1, (Marshall, 1994).
Schematic of the FX send/return, 7111-65-02 Issue 1, (Marshall, 1994).
Photograph of a 7200 head.
DBS 72115, 200W 1×15″ combo
This amp was in production from 1996 up to 2000. It is a 1×15″ combo version of the 7200 head.
Owners manual for the DBS 7200.
Schematic of the pre amp part A, 7111-60-0A Issue 2, (Marshall, 1994).
Schematic of the pre amp part B, 7111-60-0B Issue 3, (Marshall, 1994).
Schematic of the pre amp part C, 7111-60-0C Issue 3, (Marshall, 1994).
Schematic of the power amp, 7111-61-02 Issue 3, (Marshall, 1994).
Schematic of the graphic EQ, 7111-62-02 Issue 1, (Marshall, 1994).
Schematic of the PSU, 7111-63-02 Issue 2, (Marshall, 1994).
Schematic of the DI output, 7111-64-02 Issue 1, (Marshall, 1994).
Schematic of the FX send/return, 7111-65-02 Issue 1, (Marshall, 1994).
DBS 72410, 200W 4×10″ combo
This amp was in production from 1996 up to 2000. It is a 4×10″ combo version of the 7200 head.
Owners manual for the DBS 7200.
Schematic of the pre amp part A, 7111-60-0A Issue 2, (Marshall, 1994).
Schematic of the pre amp part B, 7111-60-0B Issue 3, (Marshall, 1994).
Schematic of the pre amp part C, 7111-60-0C Issue 3, (Marshall, 1994).
Schematic of the power amp, 7111-61-02 Issue 3, (Marshall, 1994).
Schematic of the graphic EQ, 7111-62-02 Issue 1, (Marshall, 1994).
Schematic of the PSU, 7111-63-02 Issue 2, (Marshall, 1994).
Schematic of the DI output, 7111-64-02 Issue 1, (Marshall, 1994).
Schematic of the FX send/return, 7111-65-02 Issue 1, (Marshall, 1994).
Schematic of the cabinet horn, 7111-66-02 Issue 1, (Marshall, 1994).
DBS 7400, 400W head
This amp was in production from 1994 up to 2000.
Owners manual for the DBS 7400.
Schematic of the pre amp part A, 7400-60-0A Issue 4, (Marshall, 1994).
Schematic of the pre amp part B, 7400-60-0B Issue 5, (Marshall, 1995).
Schematic of the pre amp part C, 7400-60-0C Issue 3, (Marshall, 1994).
Schematic of the tube circuit, 7400-61-02 Issue 4, (Marshall, 1994).
Schematic of the FX send/return, 7400-62-02 Issue 3, (Marshall, 1994).
Schematic of the power amp, 7400-63-02 Issue 5, (Marshall, 1994).
Schematic of the PSU, 7400-64-02 Issue 6, (Marshall, 1996).
Schematic of the output circuit, 7400-65-02 Issue 7, (Marshall, 1996).
Schematic of the crossover circuit, 7400-66-02 Issue 1, (Marshall, 1993).
DBS 7015, 200W 1×15″ 8Ω cabinet
This 1×15″ cabinet was in production from 1994 up to 2000.
Owners manual for the DBS 7200.
DBS 7041, 200W 4×10″ 8Ω cabinet
This 4×10″ cabinet was in production from 1994 up to 2000.
Owners manual for the DBS 7200.
Schematic, of the HF horn filter 7200-63-02 Issue 1, (Marshall, 1994).
DBS 7115, 300W 1×15″ 8Ω cabinet
This 1×15″cabinet was in production from 1994 up to 2000.
DBS 7152, 400W 2×10″ & 1×15″ 4Ω cabinet
This 2×10″ & 1×15″ cabinet was in production from 1996 up to 2000.
DBS 7210, 400W 2×10″ 4Ω cabinet
This 2×10″ cabinet was in production from 1994 up to 2000.
DBS 7212, 400W 2×12″ 4Ω cabinet
This 2×12″ cabinet was in production from 1994 up to 2000.
DBS 7215, 600W 2×15″ 4Ω cabinet
This 2×15″ cabinet was in production from 1994 up to 2000.
Owners manual for the DBS 7400.
DBS 7410, 800W 4×10″ 4Ω cabinet
This 4×10″ cabinet was in production from 1994 up to 2000.
Owners manual for the DBS 7400.
DBS 7412, 800W 4×12″ 4Ω cabinet
This 4×12″ cabinet was in production from 1994 up to 2000.
Owners manual for the DBS 7400.
