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Evaluating Electrolytic Capacitors Specified for …
https://www.aes.org/e-lib/download.cfm/20891.pdf?ID=20891
are likely to contain many capacitors in-circuit. At this point, it is well known that all capacitors in-troduce nonlinear distortions into audio circuits and that electrolytic capacitors in particular introduce measurably more distortion than film and NP0 ceramic types. [1], [2], [3] Previous work has demonstrated that both the presence
myths and facts on electrolytic capacitors in audio circuits
https://www.diyaudio.com/community/threads/myths-and-facts-on-electrolytic-capacitors-in-audio-circuits.170852/
There already are a few threads on electrolytic capacitors This one arises from a discussion in the thread " Dx Blame ST - Builder's thread - post pictures, reviews and comments here please." around the posts #333 to #357 The statement was that electrolytic caps work best for audio when they...
myths and facts on electrolytic capacitors in audio circuits
https://www.diyaudio.com/community/threads/myths-and-facts-on-electrolytic-capacitors-in-audio-circuits.170852/page-2
electrolytic capacitor in the formation of an anodic oxide film. The negative electrode of an electrolytic capacitor is the electrolyte - which is NOT dry. It must remain moist for the capacitor to operate. Without the polarizing voltage on the capacitor, the electrolyte will slowly hydrolyze the aluminum oxide film on the positive terminal or ...
Audio Grade Capacitors: Technology and Applications
https://passive-components.eu/audio-grade-capacitors-technology-and-applications/
In addition, electrolytic capacitors have parasitic diodes that can cause changes to bias or signal characteristics. Capacitors for use in high-end audio systems In audio electronic circuits, passive components are used for defining the gain, establishing DC-blocking, rejecting power supply noise, and providing bias.
The use of electrolytic capacitors as ... - All About Circuits
https://forum.allaboutcircuits.com/threads/the-use-of-electrolytic-capacitors-as-coupling-capacitors-in-audio-circuits.59665/
The reason why electrolytic capacitors are used for bypass (coupling capacitor) is due to positive offset vias. Assume that the input signal swings between -1.1v and +1.1v (2.2Vp-p, or 0.775Vrms : standard line level 0db) And, +9v and GND are supplied for an opamp. The opamp is not able to handle minus voltage input.
Audiophile Grade Capacitors
http://aeaaudio.com/audiophile-quality-capacitors-going-beyond-the-simple-re-cap/
The best capacitor types for audio circuits are polystyrene and polypropylene. Polystyrene is the first choice, but are only available in values up to .001 uF.
Rap on Replacing Electrolytic Capacitors
https://www.nmr.mgh.harvard.edu/~reese/electrolytics/
Electrolytic power supply caps likely constitute the single worst liability in old audio, radio and test equipment. By combining small size and very low cost per unit capacitance, electrolytic capacitors (hereafter called electrolytics) are the only cost-effective choice for high-value applications like power supply filtering in most consumer
Replacing Passive Components to Improve Sound Quality …
https://bext.com/replacing-passive-components-to-improve-sound-quality/
Electrolytic capacitors are very efficient—they pack a lot of capacitance into a small space, compared to other types. Unfortunately, they also pack a lot of dielectric absorption, ESR, and leakages so they need to be used with discretion in audio circuits.
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