V-Cap Odam or Miflix output caps In preamp

Hi all, Just to add some more "spice" to the conversation I wanted to add some additional impressions. I've found a variable which may be useful regarding these caps. 

In lower voltage first stage of a few amplifiers I've tried the Odams in, I found them rather extended on both extremes, but somewhat dark in the midband compared to many other caps I've tried. In this scenario the Miflex did the trick and we're very detailed and engaging without any perceived forwardness. 

However in a higher voltage stage where the B+ was closer to 400 volts, the Odams really shined! I found them to be more transparent and neutral here without any of the slight thickness or darkness down below. In this case, the Miflex sounded a tad unrefined in the upper midrange and lower treble. I've concluded that the type of circuit and working voltage make a profound difference over what sounds "best". 

My thoughts are that, since capacitors have two functions (to block DC and pass AC music signals), these may not be mutually exclusive functions and rather somewhat tied into what we hear. 

I've also found this to be true with the Audyn True Copper caps, and I love each of the three, albeit in different situations. 

All the best, Aric

@linnlp12  Could you please reference the article that you're referring to? The only one I could find was where Troels Gravesen upgraded an EAR 861 with the Miflex "KFPM" (not the oil-filled KPCU) and he makes no note of how the capacitors sound, just that a faulty tube caused some noises in the amp and he replaced the tubes. He states his friend could not tell whether it was the caps or the new tubes which made the amp sound better. 

http://www.troelsgravesen.dk/EAR-861.htm

Best, Aric

@aricaudio Are you saying the Audyn like the Miflex or Odam? I"m using both Miflex and Audyn True Copper Max in lower voltage situation.

@sns I wasn't saying either about the True Coppers as I find them equally enjoyable in higher or lower voltage circuits. I'm mainly saying that each can have a different situation where I find them to sound best. I hope this helps, Aric

Old thread but Google brought me here so may as well jump in and see if I get any opinions.

Looking to choose a coupling cap for my tube preamp.

Very happy with my system, but one thing I am looking to tweak towards is greater detail and transparency, and a bit more forward sounding. In general, I value texture and separation. My system leans warm and dark (which I love, but it's about final details). I'll note I'm also doing the 0.22 input coupling caps.

I just can't seem to make a final decision, so any thoughts are useful. Already got some good tidbits here.

Options in looking at:

Miflex KPCU-01

Miflex kfpm

Duelund CAST-PIO-Cu/Ag Hybrid

Duelund  CAST-PIO Tinned Copper Foil, WPIO

Audyn True Copper Max

Jupiter  HT Series, Round Case

Mundor s/o/g supreme 

Certainly prices are all over the place. For example the duelund are $200 more than the miflex. Not really concerned about price though.