Marshall amplifier dating

The vintage Marshall JTM 45 amplifier circuitry was based on the popular 1959 Fender “Tweed” Bassman 5F6A circuit.Today, both are legendary amplifiers, each providing their own unique tone.Fast forward to today: the BOSS Waza Craftsmanship team, through their proven expertise, has given birth to the new BOSS Waza Amp.The BOSS Waza Amp has contributed to that evolutionary process through Waza Craftsmanship with the ideal brown sound for today’s passionate artists.Through their circuitry tuning innovations and expertise, BOSS engineers have made specialized fine adjustments to achieve the ideal brown sound.Historically, there have been many masterpiece stack amps with complex overtone changes created by adding different distortions in each stage of serially connected multiple tubes.This is specifically designed to produce a more vivid sound by precisely controlling the interaction between the preamp and the power amp.The transformer separation avoids an unintended link between the power amp and the preamp sections through the transformer section.

While the basic circuit block designs of amps have not changed all that much, engineers over the years have painstakingly contributed to the evolution of the rock sound through many phases of inherited craftsmanship and tuning.

The Waza cabinet comes in two formats: 4 x 12” and 2 x 12”.

The closed-back cabinet is carefully designed in combination with the new speaker to provide a strong presence in the ensemble, with a dense sound pressure and full-face resonance.

In testing numerous other speakers, BOSS has found that there is no other speaker more suitable for the brown sound than the landmark speaker of the early stack amp.

However, the limitation of power-handling capacity posed a critical problem for BOSS engineers, especially for the 2 x 12” cabinet configuration.

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