What about a discussion on the effect of dielectric absorption? Couldn't this make a difference to the sound in crossovers? Some audiofool capacitors have oil inside and that could possibly affect the sound, some even perceiving that as improved sound.1. Hides the "bad sound quality" as not measurable distortions?
Edit: Just found something. Dielectric absorption is another non-issue apparently.
"With a 22k load resistor, the maximum 'recovered' voltage is 4.45mV, at 1.2ms after the short is removed (-81dB). Remember that this was after charging the cap to 50V for 500 seconds, then shorted for one second. This is not a normal audio circuit, and no audio circuit will subject a capacitor to anything even approaching the conditions used here.
"Caps in audio circuits are simply not charged and discharged in this manner. To do so would cause signals to be generated that, after amplification, would mean instantaneous speaker disintegration. These tests are silly - they prove nothing, but are regularly hailed by some audiophiles as some kind of 'proof' that they can hear a difference because it can be measured. It is forgotten in the excitement that the signals and tests that form such proof will never occur in a real audio system that is not in the process of blowing up.
"I have heard claims that the voltage recovery characteristic causes distortion similar to reverberation. What complete rubbish! If it were that simple to create reverb, one can be sure that no-one would have ever bothered with reverb springs, plates, or digital delays. Utter nonsense - it simply does not happen."
Source:
Rod Elliott. Capacitor Characteristics.
Capacitor Characteristics
Capacitor Characteristics - what do they mean for audio applications? Are 'audiophile' grade caps worth the extra?
sound-au.com
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