The issue is you need to look at the purpose. For example a 63V 10uf along side 220uF 40V isn’t there for capacity but for filtering. So selecting the right characteristics for the replacement means looking at it’s position in the schematic.
Hi, thanks for the reply. Of course, I have all of the measurements taken already. I'll be buying at Mouser, or Digikey. I didn't mention that, as I thought it is obvious. No worries
Yes, I have grouped them by function. I have power (general decoupling and bulk capacitance), feedback (phono circuit and the amp FB loop), and signal chain. In signal and FB I'm planning to use bipolar caps. So the power is left to be figured out.
Another thread asked about alternative replacements for these and Panasonic FM were quoted:
https://www.diyaudio.com/community/...p-after-rectifier-for-low-power-usage.158797/
I've used Panasonic FC, FR and I have some FM in the next mouser order once it's ready.
I was thinking about FC, but I don't know the FM. What is the main difference between them?
What qualities of the capacitor are important for bulk capacitance, decoupling, signal chain and feedback loops/filters?
I think FR is a later evolution of FM and FC, they have continued to lower ESR a little as well.
Yeah, I have that feeling that basically 80% of caps will work perfectly well. Or even more. I was curious to hear what is other people's choices and why.
Hi SomekPoland,
100% if you are comparing good brands.
The circuit impedance is comparatively high, meaning ESR means absolutely zero here. It really comes down to DA and size (does it fit?). If you research the DA values you will see a trend in capacitors, it is common for all manufacturers that are good.
-Chris
100% if you are comparing good brands.
The circuit impedance is comparatively high, meaning ESR means absolutely zero here. It really comes down to DA and size (does it fit?). If you research the DA values you will see a trend in capacitors, it is common for all manufacturers that are good.
-Chris
Hello to you all. If we talk about caps of higher capacitance values on places like signal decoupling (between audio stages or on output), or NFB DC decoupling(from NFB L-pad to ground), Nichicon MUSE ES bipolars are most transparent and neutral sounding caps that I encounter, just try to use right capacitance and higher voltage (25>V) types. For me they are in league of some of best PP caps. Also avoid direct paralleling with small foil caps or use small value high quality series resistor in series with that parallel foil to smooth out ESR differences.
Hello Gasho,
I get that this is your preference, but I have to say that going to a capacitor that is too large for that application brings a whole host of negative aspects. Yes, I'm saying you are creating problems.
The higher the capacitance gets, guess what also increases? Leakage and inductance. Where there is a DC potential, a polarized capacitor has vastly better characteristics and is smaller. I'm simply talking from a technical standpoint, I am not critizing your personal choice in capacitor brand and model (although it can be proved there is no sonic difference at all). Just pointing out you are giving quasi technical advice. Your opinion is fine, just keep it to that.
I get that this is your preference, but I have to say that going to a capacitor that is too large for that application brings a whole host of negative aspects. Yes, I'm saying you are creating problems.
The higher the capacitance gets, guess what also increases? Leakage and inductance. Where there is a DC potential, a polarized capacitor has vastly better characteristics and is smaller. I'm simply talking from a technical standpoint, I am not critizing your personal choice in capacitor brand and model (although it can be proved there is no sonic difference at all). Just pointing out you are giving quasi technical advice. Your opinion is fine, just keep it to that.
Hi IWC Doppel,
I don't know what you mean.
As a tech for over 45 years, and direct experience, and having test gear capable of resolving this easily, I have extensive first hand knowledge. Also with lot's of feedback from customers and testing. This isn't an opinion. The findings have been extremely consistent over decades. What more do you want? What I am saying also makes sense if you understand electronics, physics and components.
I don't know what you mean.
As a tech for over 45 years, and direct experience, and having test gear capable of resolving this easily, I have extensive first hand knowledge. Also with lot's of feedback from customers and testing. This isn't an opinion. The findings have been extremely consistent over decades. What more do you want? What I am saying also makes sense if you understand electronics, physics and components.
Unfortunately not, otherwise we would not need to audition any component just buy on specs. I am not saying measurement has no value far from it. What would you measure to voice a crossover with component choice, I'm sure you could probably find a component that measures well and sounds good and visa versa. Take some of the latest DAC chips vs older less well performing. I can quote one of many examples with my Blu-ray player I have been modifying, I had a stock 9000 Panasonic and an Oppo 205 which measures better on a number of points. The 205 was significantly behind sonically than the 9000 for analogue out.
Hi IWC Doppel,
See, the thing is that you aren't seeing the measurements I am seeing. In fact I have predicted how things will sound accurately since getting my latest test equipment. The sad truth is, we can measure, and if we know how to interpret the results we then know a lot more than you can imagine.
Fortunately!
Audio is no mystery. It is now a cold, hard science. Now, if you want to interpret equipment with obvious defects (single-ended triode for example), why would you bother???
Anyway, hold on to the myths of the 1970's if you want. It may make you feel warm and fuzzy, but the world has in fact moved on. I deal in a world of facts. If you gain my knowledge and experience, you would understand. Until then I guess you'll hang onto outdated ideas.
See, the thing is that you aren't seeing the measurements I am seeing. In fact I have predicted how things will sound accurately since getting my latest test equipment. The sad truth is, we can measure, and if we know how to interpret the results we then know a lot more than you can imagine.
Fortunately!
Audio is no mystery. It is now a cold, hard science. Now, if you want to interpret equipment with obvious defects (single-ended triode for example), why would you bother???
Anyway, hold on to the myths of the 1970's if you want. It may make you feel warm and fuzzy, but the world has in fact moved on. I deal in a world of facts. If you gain my knowledge and experience, you would understand. Until then I guess you'll hang onto outdated ideas.
I didn't give techical advice, I wrote my personal preference made by a lot of listetning sessions. There isn't always enough DC offset for good biasing of polarised caps, but in this case there is no reason to use them. There are ways to make caps with lower or almost no inductance of rolled foil
Ear (brain) can be, and must be trained if you want to be critical listener, like other parts of human body.
If you don't do sports training, you simply can't do stuff others trained people can do.