Mundorf (non-oil) Silver / Gold EVO MCap Supreme coupling caps in your tube amp ???

Dear @decooney   : I can read in thread that all audiophile posts including you are using the capacitors as a Tone Control in your room/systems when the true is that serious manufacturers design and make capacitors to run exactly as the job any cap :must does, far away than be a " tone control ". Electric ( ingeenering.) laws are what fix the targets in any kind of capacitors,not you,me or any one else.

Here what we have to know about capacitors and  what several " high end caps " just don't do it and ar rhe end their caos work as a control tone passive device instead to really makes what is supposed to do:

https://web.mit.edu/viz/EM/visualizations/notes/modules/guide05.pdf

and this too:

https://sound-au.com/articles/capacitors.htm

I recomend for you ( even that you already have the Mundorf ) the Wima FKP1. I already used almost all the " hogh end " caps named in this thread and after understand what is that " tone contrl " main characteristic I found out that are: colorations and heavy distortions added to signal that should not been there. Yes those distortions is what we like.

Here the FKP1:

https://www.wima.de/en/our-product-range/pulse-capacitors/fkp-1/

https://www.wima.de/wp-content/uploads/media/WIMA-Audio.pdf

You can try rhe FKP 1, are totally inexpensive and could bu through Mouser Electronics. If you do give the Wima around 10-20 hours for you can do a good judgement.  Exist NO colorations/distortions because is a neutral cap as should be always.

Could be good foryou to know how in reality performs your electronics quality levels.

Regards and ENJOY THE MUSIC NOT DISTORTIONS

R.

Dear @decooney  : " 

"65 hours" of burn-in cap forming, settling in - is not enough.  

No joke - give it 200hrs and you'll find these particular caps will continue to form and settle even up to 300hr  "

I don't know where you read that true joke. A true cap as Wima or Vishay needs no more than 3-5 hours and not "to form ".

I think that like me you need to learn by your self making caps tests including the Wima.

What other audiophiles/gentlemans said is not about a true cap but " other passive device " that they named capacitor.

Don't beloeve me but make those tests by your self. I you don't like it at least you will know youare "rigth " and if you like then you improve your knowledge audio levels.

Only and opinion trying to help.

R.

@rauliruegas my caps are paid for and already formed and settled on all of my current amps, and priors, so I'm good.  I don't have any problems looking for new solutions right now. Best Luck and Happy Listening

Dear @decooney   : Sorry to disturb you again.

" already formed and settled on all of my current amps,...."  " after 300 hours " or the like.

You insist in something that does not make sense and that does not exist in your kind of caps: " formed "

You posted 200-300 hours and other gentlemans as you that own tube electronics said for years that " myth/rumor " that you are still spreading with out any single foundation to help other Agon members. LooK:

after 300 hours to began to listen those caps your tube electronics surely sounds different but not because the caps are " formed " but because those tubes changed a little or to much its quality performance levels and the other thing is that your memories after 300 hundred hours almost fail/fall completely to trust on it.

Just the imagination of all of the other " thousands " of " audiophiles " that own tube electronics and that spreaded the same " myth " as you.

No myth or rumor that is talking about for years can convert in a TRUE, no way my friend and that’s why I posted that why do not tell us where do you read that " rumor ".

Please do it a favor and read on these links and think how your tubes ( the tube ) electronics can change after 300 hours and not only your electronics but the electric power affects too and obviously your mood levels that certainly are not equal that 300 hours before the last listen sessions:

Metallized Film Capacitors: A Comprehensive Guide- Wuxi Walson Electronics Co., Ltd

Film and Foil Organic Dielectric Capacitors

Power Film Capacitor Application Guide

I already gave you information of Wima that’s a industry standard as Vishay too, not the " high end " caps that need to be " formed ". Sorry.

R.

To rauliruegas your analysis does not apply. I mod my own amps and tube wear does not apply here.  

I have four quads of different sets of output tubes and input tubes I use, and the first set is for burn-in of the new amps, transformers, caps. Same process on the last three amplifier and pairs of monos.  It’s not about tubes changing when I’m installing new tube sets in the amps after the first 250-300 hours. I put them in storage and break out the new tube sets in each case.    

I’m not interested in other caps, and super happy with my last four sets of Mundorf Evo Silver-Gold caps on my last four tube amplifiers. They are fantastic.  Best for you to move on and advertise somewhere else.  Good Luck. Happy listening.