However, the nature of tube distortion is often seen as desirable many enjoy the added warmth and fuzz, the lack of note definition and more gradual attack and decay provide a presentation that arguably better reflects sounds in reality. Thereby, minimizing distortion has been an ongoing pursuit for solid stage amp makers as this is ideal from a fidelity point of view. As it sounds, this is defined by sounds in the audio output that were not present in the input signal. Due to the nature of tube amplifiers, the metrics I personally use to evaluate amplifiers go out the window.ĭistortion is often cited as being a main downside of tube designs. This is an OTL (output transformer-less) tube amp meaning there are no transformers or solid-state components in the audio circuit, the output is solely tube. However, the TA-26 is not such a creation, being a close derivative of the Darkvoice 336SE, both based upon a schematic that is now many decades old. Output impedance can be lowered through the use of an output transformer or hybrid design with tube pre-amp and solid state amp. However, these very same reasons are also the reason they’ve remained relevant. I do think tube amplifiers are often too quickly discounted based on the high output impedance inherent to the actual vacuum tubes themselves in addition to their high distortion. I am far from the leading authority on this subject, but have dabbled in tube amp design in the past – with little success mind you.
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