Introduction: WHAT’S WITH THIS TUBETONE?
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WHAT’S WITH THIS TUBETONE?
Tubes, we can all agree, are the heart and soul of every legendary guitar amp and are
responsible for the warm, harmonic-rich tone quality of those amps. Solid state
devices (transistors) are simply unable to duplicate tube warmth and performance.
And “hybrids” – a tube in a circuit along with a bunch of transistors – are really a vain
attempt at warming up a transistor-based tone. They fall short in any comparison to a
100% tube circuit. So that’s it – tubes or nothin’, right? Well, not any more....
You see, the engineers at Line 6, being an adventurous lot, and totally pumped about
this whole guitar tone thing as well, decided to stock up on the coffee, bust out the
engineering equipment, and get down to learning everything there is to know about
tubes. Riding high on the caffeine wave, they began a three-year project to analyze
and map out exactly how different types of tubes respond under various conditions
typical of guitar amplifier design. How tubes process an input signal, how the signal is
colored and shaped, at what point it begins to distort, the quality and characteristic of
the distortion – complicated stuff, but all analyzable as electronic data. A guitar
pickup output, after all, is an electronic signal, and tubes are really just a complex form
of signal processing.
Having sussed it all out, the Line 6 engineers were then able to apply their digital
expertise to develop software which simulates the tube and other circuitry’s signal
processing entirely within the digital domain. Cool, huh?
This revolutionary software-based modeling technology, called TubeTone, gives Line 6
the power to create butt-kickin’ Digital Guitar Amplifier Systems like the AX2:
feature rich guitar amps with a whole new kind of tonal flexibility.