What tubes does the Marshall 3315/5150 150W - Clean use?

The Marshall 3315/5150 150W - Clean uses solid-state preamp tubes and solid-state power tubes.

When was the Marshall 3315/5150 150W - Clean produced?

The Marshall 3315/5150 150W - Clean was produced 1978–1983.

Marshall 3315/5150 150W - Clean preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Marshall 3315/5150 was a 150W bass amplifier head produced in the late 1970s and early 1980s, delivering high headroom for bass guitar applications on large stages. Its robust solid-state power section and parametric EQ made it a professional touring bass solution of its era.

Years produced: 1978–1983
Made in: UK
Wattage: 150W
Channels: 1
Preamp tubes: solid-state
Power tubes: solid-state

Tags: bass, solid-state, high-power.

Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.