Butler anyone?

In May 1973, the prestigious Journal of the Audio Engineering Society of New York (AES) published the most definitive study ever undertaken regarding the sound quality of vacuum tube equipment: Tubes vs. Transistors - Is There An Audible Difference? -By Russell O. Hamm. (Click here to read)

After critical subjective and in-depth technical analysis, these two essential areas defining vacuum tube sound were disclosed:

1) "Our extensive checking indicated...a definite audible difference in the sound quality...where there is a mechanical-electrical interface." "...power amplifiers driving speakers..."

2) "The basic cause of the difference in tube and transistor sound is the weighting of harmonic distortion components in the amplifier's overload region."

Tube Driver BLUE accurately fulfills both of these essential requirements for tube sound:

By directly interfacing the mechanical-electrical speaker load with twin triode vacuum tube drivers, Tube Driver BLUE produces the response and tonality of 'all tube' power amplifiers.

Utilizing the pure thermionic Edison Effect, the Tube Driver BLUE circuit design safely biases the twin triode Tube Drivers to a consistent, near-saturated or overload condition. The results are greatly expanded dynamics, punch and presence from naturally produced vacuum tube harmonics.

"Tube Driver BLUE is the only vacuum tube-driven amplifier in the world that satisfies BOTH of the critical AES requirements for authentic tube sound. The proof is entirely in the awesome performance. If you love tube sound, you MUST audition these amps!" - BK Butler

Klikk for å utvide...