It must not impose any bandwidth, phase, linearity or low level abnormalities which can be amplified by the following stage or stages. Audio NoteTM is unique in our facility to design, model, prototype and wind our own transformers in house, yet in spite of this it took even us six years to research and develop the necessary materials know how to achieve a musically transparent magnetic coupling from input to output in such a simple circuit.Įach transformer has to be complimentary in every aspect of behaviour to the one next in line. Our finding was that such a simple amplification circuit demands a degree of transformer quality never seen before in professional or domestic audio. However when we came to building a prototype we discovered why such nothing like it had been implemented before, and it was more than half a decade before we could bring the new Gaku-On to fruition. This topology reduces the number of passive parts in the signal path to just two resistors.ĭesigning the circuit was relatively easy on paper. In pursuit of ultimate simplicity, we decided that it would comprise just two active stages and three transformers one on the input, one as a driver and one on the output. Our ideas eventually led to a decision to develop a better sounding power amplifier circuit, a potential successor to the original parallel single-ended 211 based Gaku-On. Unsurprisingly, the more we explore, the more it becomes obvious that simplicity – and in particular keeping passive components completely out of the signal path or at least to an absolute minimum – is desirable for better and more faithful music reproduction. However, when it comes to executing this ideal, most of the rest of the industry has been wilfully forgetting this truth and has become addicted to complexity and technology as marketing statements, in stark contrast to this Audio NoteTM has continued to focus on studying and refining our understanding of how to achieve the above goal in order to create products that deliver better and more realistic music, lasting value and overall quality. The shortest signal path is generally the best, this is the professed aim of almost all the manufacturers of high quality amplification in the audio industry.
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