Eros Output Caps

Paul Joppa said:
  .  .  .    Heh heh, yeah the Solens can creep up on you. Some say they take as long as the teflons to sound their best; in any case the process (after the first 20 hours or so) is slow and undramatic.

The Solens got a long burn in.  I finished my ALL STOCK build this fall and I have just begun to tweak the Eros.  The Solens have had several hundred hours break in.

The Mundorf S/G/O went in permanently today.
 
Alexz said:
Paul,
Are there any explanations for caps break-in effect ( not teflon, but in general)? For some of them (mundorf s/g  for example)  magnitude of changes is not subtle at all, almost like a speakers.
I hear the same thing with most capacitors, and it makes no difference whether I listen throughout the breakin process or not - I tried it and really hoped that might be the explanation but it's not. I have never found an explanation with either reliable facts to back it up, or enough physics to make it plausible. Fortunately my experience is as an engineer; if I know what works and it is repeatable, then I can design with it whether or not I understand what is going on.
 
Sorry to resurrect an old post, but I have replaced the 1.0uf Mundorf silver/oil caps with  0.22uf V-cap TFTF.  The V-caps are fully broken in have come from an older project that I have cannibalized.
The first thing I notice is that the sound is much clearer, the 1.0uf Mundorf sounded somewhat "smeared" compared to V-caps.  Soundstage is somewhat more immersive and more realistic sounding. I notice no change in the bass extension with the lower value caps.  Overall much more pleasurable to listen to.

Don't know if this is do to the V-caps or the value change, probably some of both.  I know changed too many variables at once, the more scientific way would have been to use a 0.22uf Mundorf silver/oil first and then tried the V-caps, but I didn't have them to try.
The bottom line is that I am happy with the change and in the end that all that counts.

Deb
 
Amen Deb!  That is all that counts.  Checking I have a PM from PB saying a 400V cap is fine.  The V-Cap comes in 300V and 600V.  Hmmm, the difference is about $28.  Does an official Bottlehead want to chime in on saving $56 a pair?

I could go for either, but being the avowed cheapskate that I am I would like to save the bucks.  I could get a 1.75l bottle of Woodford reserve for that savings.
 
Grainger49 said:
Amen Deb!  That is all that counts.  Checking I have a PM from PB saying a 400V cap is fine.  The V-Cap comes in 300V and 600V.  Hmmm, the difference is about $28.  Does an official Bottlehead want to chime in on saving $56 a pair?

I could go for either, but being the avowed cheapskate that I am I would like to save the bucks.  I could get a 1.75l bottle of Woodford reserve for that savings.

I wouldn't be bothered by a 300V cap in the Eros.  An unloaded B+ rail in that power supply is going to creep up there a bit, but we have the CCS of the 6DJ8 feeding a plate load from plate to ground, so there is some built in voltage protection there that should take care of you.

-PB
 
Thank you Paul! 

Deb,

I was wondering about the 0.22uF value, then remembered that I put in one 0.22uF KK Teflon and it sounded more than fine on the bottom end (with Triangle Zerius and sub back then).  Into the 100k FP 2 pot that calculates as a -3dB point of 7.23 Hz and essentially flat at 72.3 Hz.  That is a faint roll off between the two frequencies.

I think Paul pushed me into it, I'll go for the high priced spread here.  And break them in on my Eagle 2C (sold the GainClone) downstairs for a month.
 
Grainger

I used the 0.22uf value after reading some of your previous post in this thread.  I think it sonds better than the 1uf I had in there already.  I probably would have gone for a 0.47uf but I already had the the 0.22uf


Deb
 
Glad to be some help.

TipHat.gif
 
Grainger49 said:
Glad to be some help.
TipHat.gif

Your input on caps, Grainger49, is more than "help"!

BUT, if you those of you out there wanna make your head swim (or explode! :o) as to what might be other options in the cap rolling department, check these out.

http://www.humblehomemadehifi.com/Cap.html
http://www.v-cap.com/pdf-files/21capacitorshootout.pdf
http://www.enjoythemusic.com/diy/0708/capacitor1.htm - parts 1, 2 and 3
https://www.head-fi.org/t/284863/orgy-of-capacitors-the-cap-thread - very length-y
http://diy.ecpaudio.com/p/some-notes-on-coupling-capacitors.html
http://tech.juaneda.com/en/articles/electrolyticcapacitors.html - electrolytics
http://www.laventure.net/tourist/caps.htm

Even though some of this stuff may be appear dated the results make for some interesting debate, discussion, arguments, etc. My personal experience with some of the Russian goodies has been very rewarding.
 
I think the key difference here is that I am not paid to make these comparisons.  I have to buy the capacitors myself, mostly without a personal income.

I would really be interested to see the total cost of the capacitors in one of these reviews.
 
A Care Package arrived this week.  I had ordered two pair of caps two months ago.  I forgot, completely forgot. 

I am now burning in two TFTF V-Caps, they are due off on the 22nd.  Then into the Eros!
 
Grainger49 said:
A Care Package arrived this week.  I had ordered two pair of caps two months ago.  I forgot, completely forgot. 

I am now burning in two TFTF V-Caps, they are due off on the 22nd.  Then into the Eros!

You're in the deep water with the big kids now. :)
 
Grainger49 said:
A Care Package arrived this week.  I had ordered two pair of caps two months ago.  I forgot, completely forgot. 

I am now burning in two TFTF V-Caps, they are due off on the 22nd.  Then into the Eros!

Grainger

What value capacitor did you go with?

Deb
 
Rob,

Well, I was making money then and it was a weak moment.


Deb,

0.47uF.  That is the design value for the last stage; same as the Seduction.  The values delivered, there have been two different values I am aware of, are a upgraded film Solen caps.  Upgrade sonically from the brown metalized Polypropylene film caps delivered in the Seduction. 
 
I check the connections to the TFTF caps every day.  The two cats sleep in this room and they are awful about messing things up.  So far, so good.
 
Sadly... I have not done a comparison yet.  The Caps are burned in and ready.  But I have many other things, house/personal, that have come before my listening. 

Maybe soon.  I'm sick as a dog and not ready to do anything physical.
 
Grainger49 said:
Sadly... I have not done a comparison yet.  The Caps are burned in and ready.  But I have many other things, house/personal, that have come before my listening. 

Maybe soon.  I'm sick as a dog and not ready to do anything physical.

Well keep us posted when you do get to them ;)

..and get well soon!
 
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