Blackgate caps out of production, so...

[stephensank]

I hope you all are keeping in mind that electrolytic caps, and I can speak specifically for Nichicon, which I use almost exclusively, can take 200-400 hours to approach fully breaking in, even when the caps are supply filters. The sibilance you speak of is likely to disappear over the next week or two of continuous run time.
And I don't give a dingo's kidney if any of you try to assert that caps don't have a break-in period. I have thirty+ years of practical experience as a high end audio servicer & audiophile that confirms that just about every part & bit of wire in any audio system has some degree of break-in during initial running.

[KlipschKid]

Hi,

Dingo kidneys - are they expensive ? :-)

Yep, I'm certain they break-in too. I left these running continuously for 48 hours before listening as this is normally enough but perhaps these will take longer to become more balanced. Good caps though, even at 48 hours.

I also tried the higher voltage ones (47uF 25V LF) - not so good. It seems it is the lower esr ones that are best ?

[IanAS]

Originally Posted by KlipschKid

Have you tried them in analogue psu?

Here are mainly the PLE / PLF 820uF 16V and 820uF 6.3V on my PC soundcard. Mostly in analogue positions.

I mostly ran them for about three months, 24/7 before doing the listening tests. The comparison caps were also on there, or on another sound card, for a similar period.

It's a bit rough looking as it's a work in progress.

They are before and after analogue position regulators and one digital supply regulator. Also before the DAC chip and each side of the OpAmp.

It became clear that it needed three of the 820uF 6.3V in parallel before the DAC chip to do what was needed. Each time I added an extra one the sound became generally better, but more so in the bass.

I found the same when I upgraded a Dacapo DAC last year. Three caps before the DAC. One of those though was a BG N 220uF 6.3V that I happened to have. In that case, the BG gave a needed amount of extra bass but without the muddle that it also gave on the sound card.

I fitted back diodes across the regulators to be safe.

See my post 118 for the longer description of the comparison

[KlipschKid]

Thanks - I'll try some in parallel too.

[Kuka]

...by the way, has anyone tested the new Panasonic FR? The specs seems very good: same ESR as FM series, high ripple current, high endurance. I wonder, how they make in audio circuits.

[IanAS]

A couple of years ago I used the Panasonic ECA (for Audio) range of caps when I repaired half a dozen Arcam 200 amplifiers for someone, ostensibly a re-cap.

I was surprised how much better sounding were the amplifiers with the ECA caps in the input DC blocking and the feedback positions compared to the ones with the original caps in those two positions.

And...

I just became aware of 100 volt Nichicon polymer caps. Alas, the 80V and 100V seem to be not available. They might be good at as the caps from a higher power amplifiers output device ± rails to centre tap. And as pre and post regulation caps for the early stage.

Conductive Polymer Aluminium Solid Electrolytic Capacitors, LV are down the bottom:

Digi-key stock only up to 63 volts.

47u 63V; PLV1J470MDL1 493-3874-1-ND
22u 80V; PLV1K220MDL1
18u 100V; PLV2A180MDL1

Perhaps someone here knows or can find out if these 80V and 100V can be purchased?

[lenta]

Originally Posted by IanAS

A couple of years ago I used the Panasonic ECA (for Audio) range of caps when I repaired half a dozen Arcam 200 amplifiers for someone, ostensibly a re-cap.

I was surprised how much better sounding were the amplifiers with the ECA caps in the input DC blocking and the feedback positions compared to the ones with the original caps in those two positions.

And...

I just became aware of 100 volt Nichicon polymer caps. Alas, the 80V and 100V seem to be not available. They might be good at as the caps from a higher power amplifiers output device ± rails to centre tap. And as pre and post regulation caps for the early stage.

Conductive Polymer Aluminium Solid Electrolytic Capacitors, LV are down the bottom:

Digi-key stock only up to 63 volts.

47u 63V; PLV1J470MDL1 493-3874-1-ND
22u 80V; PLV1K220MDL1
18u 100V; PLV2A180MDL1

Perhaps someone here knows or can find out if these 80V and 100V can be purchased?

There is also similar Panasonic SP-Cap and Sanyo POSCAP.

They both can be found in the same homepage, only today get to know that Panasonic bought Sanyo in 2009.
Passive & Electromechanical | Products | Industrial Devices | Panasonic Global

My head is spinning to compare them by datasheats, I wish there would be some plots.
Both can be found on Ebay.

Sanyo poscap is tantalum solid polymer, what does it changes? Does anybody used them?