What tubes does the Marshall Valvestate 40 8040 - Boost use?

The Marshall Valvestate 40 8040 - Boost uses 1× ECC83 (12AX7) preamp tubes and Solid-state power tubes.

When was the Marshall Valvestate 40 8040 - Boost produced?

The Marshall Valvestate 40 8040 - Boost was produced 1991–2000.

Marshall Valvestate 40 8040 - Boost preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Marshall Valvestate 40 (model 8040) is a 40W two-channel hybrid combo that hits the practical sweet spot of the Valvestate range — enough power for small to medium gigs, with the valve preamp's character and the solid-state output's reliability. Its clean channel delivers full, detailed tones while the overdrive channel provides the British crunch and gain characteristics associated with the JCM800 era, filtered through the ECC83's harmonic contribution. The 8040 was a popular first 'serious' amp for many players during the 1990s.

Years produced: 1991–2000
Made in: UK
Wattage: 40W
Channels: 2
Preamp tubes: 1× ECC83 (12AX7)
Power tubes: Solid-state

Tags: british, crunch.

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).

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