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The revolutionary Valvestate line featured circuitry that emulated the tone of a cranked tube amp with uncanny accuracy. These models were immensely popular with musicians, striking a balance between the lower purchase and maintenance cost of solid state technology with the tube sound that guitarists demand.

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What is AVT
In Marshall's quest to give players the ultimate tone at a realistic price, they have combined the latest innovations in valve, solid state, and digital technologies to achieve optimum sonic performance. AVT has evolved from their original, critically acclaimed Marshall Valvestate technology, but is vastly improved so it emulates the tone, feel, and response of their world-renowned, all-valve amplifiers with unerring accuracy�without using valves in the power stage.

Marshall's long history and experience in the field of valve amplification was utilized in the development of the new AVT power amp. This extremely responsive and warm sounding circuitry was then coupled with the specially voiced, ECC83 (a.k.a 12AX7) valve-driven pre-amp section, to provide 100% valve/analog warmth from input to output. Combined with numerous user-friendly features, they believe we've created the best value-for-money range of Marshall amplifiers ever!

Valve Drive Pre-Amp
From the compact AVT20, right up to the thunderous roar of the feature packed, 4-channel AVT150H, each model in their brand new AVT line boasts a pre-amp stage that is driven by an ECC83 Dual Triode valve. Unlike certain other hybrid amps out there, this valve isn't merely acting as a pilot light. Instead it is playing the central role in the gain, distortion, and tone-generating circuitry. They have gone to great lengths to ensure that this precious device delivers maximum sonic benefit at all settings and volume levels. The resulting clean sounds ring with the bell-like harmonics that only a valve pre-amp can deliver and the break-up is never harsh or unnatural sounding. Whenever you select an AVT Overdrive channel, the ECC83 is saturated to its limit, providing dynamics and feel worthy of a place in the Marshall hall of fame.

Power Amp Delivery
The same, unrivalled design expertise that went into the pre-amp was also channeled into the design of the AVT power stage. Using frequency dependent power amp damping and their proprietary, dynamic clip level technology (which emulates the HT supply of a valve power amp), each AVT power stage creates the warm, musical feel and 3-dimensional sounds that made Marshall's all-valve power amps world-renowned. Also, all AVT products will deliver the goods in the often hostile and unpredictable environment of the live performance stage - which is why the AVT power amps of 50 watts and up are fan cooled for optimum reliability.