Quote Originally Posted by pby5cat View Post
Oh im sorry, all the "F's" are panasonic. The lower the impedance, the more current can go though the cap and lest impact the cap has on the circuit. The impedence is called the ESR, Equivelent Series Resistance. So when mobo companies say they use Low ESR caps in the CPU power circuitry, they are increasing the effeciency and lowering heat dissipation of the caps and inducters. Say if a normal cap is .8ohms and u have the CPU using 80Amp split between 8 phases, thats 10A per cap. so P=IV each cap has to deal with 8 watts. If that ESR was .08 ohms, the cap dissipates 0.8 watts.

Electrolytic to film is about the bigest change possible in caps. The films mostly have a lower ESR. When it comes to sound the ESR changes with frequency. Im not shure if you would know the difference, try both?
OK, I somehow understood what you said ...it's just...I can't find impedance values for the KW's on the PDF (Link), they have an "impedance ratio" though but, I can't compare it to the Pana's. On top of that, none of the series you listed go as low as I need them to for 3 of the cap values...but the KW's do. That was one of the 2 reasons I was looking at them, the other being they were "audio grade" which from what I understand (maybe mistakenly), are supposed to have decent impedance.

The GEQ has the following AE caps:
  • 0.12uF 16V
  • 0.22uF 16V
  • 0.47uF 16V
  • 1uF 16V
  • 2.2uF 16V
  • 4.7uF 16V
  • 47uF 10V
  • 47uF 16V
  • 100uF 10V
  • 1000uF 16V


The original plan was to replace all these with 50V Nichicon KW's but now I'm not sure.

Quote Originally Posted by defect9 View Post
while you're pricing out options, consider something like this for your amp stage, as it's primarily all SMDs except the things that would be far too expensive to SMD. You can run it off the computer PSU directly, or off a meanwell switching psu (which is basically what your computer psu is, only the meanwell is obviously smaller). sounds amazingly clear and clean, even with floorstanders. and even running the bugger for hours on end with punishing music through 3-way floorstanders, it gets barely hotter than room temperature.

I still haven't found anything right for your EQ though. considered mentioning some of the smaller car-based EQs you could gut, but probably no better than what you've already found. just incase, here's the ones i found. option a option b

Oh, and polyester film is generally considered to sound way better than electrolytic when comparing same capacitance. basically consider electrolytic to be the least desireable in the audio path, but an excellent choice when used in a PSU filter for its polarity properties (or something like that, i'm no guru).
The topic started off as something of a moving target. This is because I wasn't sure which direction I really wanted to go in on this project due to my lack of knowledge on the subject. I finally settled on consolidation reconstruction (shrinkage of the PCB to be more precise) of the GEQ I have here with newer components (there will be some selective theft along the way unless I can find replacements for the transformer and slider pots). This guarantees that I get a working product in the size I need the first time without trial and error (well, we'll see about the error part later)

If that's true about the film's, why don't I replace everything I can with them instead? That'll take care of the 6 lower valued caps and leave me with 3(4) AE type capes to source.