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1. BI POLAR CAPS IN SIGNAL PATH HOW TO
2. BI POLAR CAPS IN SIGNAL PATH FULL
3. BI POLAR CAPS IN SIGNAL PATH SERIES

BI POLAR CAPS IN SIGNAL PATH SERIES

I found measurable deviation from ideal or pure C, when a tens of uF electrolytic cap was used in series with a hundreds of ohms R to form a LF pole in a high gain stage, like in a phono preamp (which should indicate how long ago this was). Years (decades) ago when electrolytic caps were lower performance than recent offerings I invested some bench time into this exercise. They'ld be emailing Kennedy Audio and asking more questions - like that ever happens.This has been discussed many times but I haven't shared my experience in this thread. Some people should just listen to themselves.

I'll settle for turning up the amplifiers to max and not having it really loud, but just real solid backed sound. Since my stereo splitter boxes get kinda ugly to use huge coils like a speaker crossover, I don't sweat this problem at all but sure, if you need to get more volume out because your pre-amp is a weener and your power amp cant budge out more than say 35 or 40 watts per channel, by all means, use 150 micro henries or more and pay some stupid price. Thats where the absurd idea that tantalum capacitors cause distortion when used in audio circuts came from originally I think, and now everybody with a theory is jumping on the bandwagon to claim a new piece of escoterica. Also the low ESR makes the coil Q higher, but that is not good if the Q causes reverberation past the time of the next cycle of the capacitor. All capacitors act like rectifiers, it just means its a better capacitor, about 2-1/2 time more capacitance per surface area than electrolytic, thats why. Yes they have much lower leakage currents. It is just jargon for the way the electrodes sizes are constructed. No, you can't put to tantalums back to back and make the bipolar. And to put to bed some other nonsense that is online all over the place - Tantalums store just as long as electrolytics.

BI POLAR CAPS IN SIGNAL PATH HOW TO

There may be a justified fear of DC, but you seem to already realize how to solve that problem. I have had no problems with tantalums at all.

BI POLAR CAPS IN SIGNAL PATH FULL

But keep working on it and be VERY careful about talking to anyone who is not active full time in circuit design of filters and component selection. Its easier to get a fast rise in the capacitive reactance and inductance combined called impedance when you use that method. Really bessels are powered devices but the Butterworth have been called 'slow' due to the larger value capacitors. The very small value use a very large inductor, (hi filter) and are trying to duplicate a Bessel filter. and NO YOU ARE NOT PICKING HIGH VALUES for your filter in the 30 to 90 uf range. It also helps cover the high end of the spectrum. To couple with a capacitor in audio usually means just using a low value like 4.7uf because at somewhere between 30 hertz it will have an 8 ohm capacitive reactance and since that matches the speaker it will optimize power transfer. To decouple the DC - a GREAT IDEA I may ad, you just use a large capacitor because it cannot pass the class A DC bias than is common on power amps and some op amps operate in class A mode.

This reverse current must be present to reset the device to begin its next cycle of operation. All have reverse currents called leakage. It only means this condition has been designed out by making the cathode larger instead of tiny so that if the liquid electrolyte does break over (normally it binds its ions tightly) there is no damage. Actually a non-polar electrolytic can have higher reverse voltage than forward voltage which is why they started the jargon -nonpolar or bipolar. You can use tantalums where you use bipolar electrolytic.

Its mostly bad judgement propted up by big business that can't change. I have been selling tantalum capacitor passive filters for high end audiophile use (at a discount).įirst, don't believe all that crap.