Since decades, the circuit design of the most part of projects worked out in amplification is based, in essence, on a differential scheme. Unfortunately, the most relevant shortcoming of this kind of circuitry is the frequency response and, with it, the rapidity in the transient response (slew-rate). Differential designs for amplification with quite extended frequency response have the drawback of a transient instability or, anyway, when excited with a step impulse, their output attains a steady state only after several "extra" oscillations that, clearly, affect the original signal with a coloration.

Starting from the assumption that no component of the stereo chain should affect the input signal, AUDIA developed a radically new circuit design, free from the flaws described above proper of the differential scheme. This new scheme, rather than the usual voltage feedback, exploits the transimpedance kind of amplification (and, therefore, extremely linear) and the feedback is closed before the output stage. The final outcome consists of very fast, stable circuits with a strong ability to control even the wildest reactive load.

Obviously, beside developing a new technology in amplification design, a lot of energy has been spent in looking for first class components, both for the quality and the performance, for clean signal paths, all that is needed so that AUDIA products be, all in one, SUPERB!

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