Originally Posted by LeonvB
It isn't an assumption. While it's true that a higher capacity will lead to higher ESR (more leakage), the blackgates have lower leakage than other caps. In fact, to stay in range, you'd have to replace it with about 10x the capacity when compared to the original. Surprise, surprise... this is the originally recommended value for the mod.
That is true for the most part, although it's not only about possible leakage but also whether the cards power circuitry can deal with such a big capacity. But there is indeed not really a clear reason why it shouldn't, but it's possible.
|Correct. You'll have to check all the specs of the opamp. Assuming it's ok just because it has the same pin out isn't smart. Some opamps need higher capacity coupling caps, so beware.
Yeah. And the OP probably did do research on it, for me personally it's hard to see for sure, there are definite character differences between the two opamps involved, but I lack the background knowledge to conclude the level of interchangeability.
|Lol. Any of the blackgate types beat the original cap. Plus your not in the audio circuit, your in the power supply section. About the only reason to use polar there would be to use 2, to eliminate noise (in a configuration as described on the blackgate pages). But given the environment (a PC), space restrictions etc. I see no need for that particular configuration.
This is true also. The jamicons are not hard to improve on though
For power cap indeed regular blackgate would already be a good improvement. For the coupling caps I still would advise nonpolars, also they dont have to be 4x22uF, I'm using 2x10uF instead at the moment (NP) (experimental setup for now). Having said that, if budget isnt too tight then nonpolars are better performers allround.
I'm sorry if I sounded a bit like a smartass in my initial post. Reading it back I mightve had a bit too much coffee that day
but most of it is still valid, just a bit overstated in some regards.
Another thing I want to stress to people who have had some channel fallout problems and L/R balance issues, and something to take care of for those who plan to do this mod: take good care to tin each chip leg well, and if you used copperwick to clean up excess tin, always re-lick that leg afterwards, it is not unthinkable to suck out so much tin that there is no solid connection anymore.
I felt like mentioning this cause the how-to site i linked to early on in this thread may leave the impression you can just tin up then copperwick it and then its fine. But make sure each leg is properly tinned to the connector.