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What is AC waveform distortion?

by ct_acoustic_frontier July 06, 2022

  The power supplies in electronics, both linear and switching, draw current only at the peaks of the AC voltage creating a characteristic 'flat topped' waveform. />

The amount of distortion of a waveform can be quantified by its Total Harmonic Distortion (THD). Ideally, for high performance audio, studio and home theater systems, THD would be under 2%. In some locations measured THD has been 10 times higher than this!

All amplifiers, except Class A devices, draw current in response to the music waveform. 'Flat topping' restricts current delivery, leading to reduced dynamics, loss of articulation, bass extension and an anemic, uninvolving overall presentation.



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Room Correction: A Primer

by Nyal Mellor July 28, 2022 0 Comments

Much confusion still exists about what a room correction product does, what problems it can (and cannot) solve and therefore its 'place' in a modern high quality sound reproduction system. Part of the challenge of understanding room correction is that it requires a reasonable level of understanding of sound quality, acoustic science, acoustic measurement and psychoacoustics (how humans perceive sound). The majority of the articles I have read online or in print magazines do not cover the fundamentals in enough depth to allow the curious and committed reader a chance to understand room correction on anything more than a cursory level. By the end of this article I hope that you will have learnt enough to judge for yourself what room correction can and cannot do and how best to apply it in the context of a world class music or home theater system.

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We are giving away $1800 in free services!

by ct_acoustic_frontier July 06, 2022 0 Comments

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