Everything about Hegel is scientific\n\nBent Holter of Hegel explains how to kill distortion the Norwegian way.\n\nThe number one target is distortion: not a steady state aim (as per test tones) but a dynamic one that rises and falls with the up and down nature of analogue music signals and particularly problematic at higher frequencies. Inside Hegel amps, distortion is tackled in real time.\n\nWithin each gain stage, Holter applies a summer to the original and inverted signals to constantly measure distortion. Should that distortion cross a predetermined threshold, the circuit will inject signal corrections to remove it.\n\nHolter says this is especially important for the high-order harmonics generated by transistors that lend solid-state push-pull circuits their occasionally unfavourable reputation as sounding hard or cold. Holter uses a similar feed-forward loop to dynamically correct for crossover distortion in his amplifier’s transistor-based output stages. The result is (reportedly) superior micro- and macro-dynamics.