JAM by Duelund

I instaled Duelund Cu-Sn bypass capacitors into my phonostege, bypassing Jupiter 1uF output capacitors. Before that I did 3 days burn-in of Duelund Cu-Sn bypass capacitors in FryBaby2,
Yes I got what I expected. Vivid guitar and piano strings and much more real cymbals. But I lost violins main tone. It was sound like an upper-midange dominated over a lower-midrange.
I run FryBaby2 during 8 hours connected to phonostage input directly, bypassing SUT. FryBaby2 was working in lowest voltage MC mode. Phonostage was on, and amplifier was off. It gave a very significant improvement.
It make sound better, more musical all-around and the lower-midrange become more rich in tone too.
But still violin sounded a little too thin. Than I tried to change interconnect between phonostage and integrated amplifier from Acrotec 8n 2080 to Duelund DCA20 (with Duelund Cu RCA connectors) and DCA16 (Switchcraft RCA). Both Duelund interconnects made violin sound natural.
So, pure Cu-Sn Duelund solution works the best!

What I like about Duelund Cu-Sn bypass capacitors - they make sound savoury.
And even some bad or boring records start sound good and exciting.

I didn't try  Duelund Ag bypass capacitors . So I can't compared  Cu-Sn to Ag.

I tried both and prefer the silver foil bypass caps.  Combined with the Jupiter copper foil they are magic. Never thin or bright, but full bodied with amazing clarity and tone.  This combo is my favorite on tweeters in crossovers also. 

Dear friends: I'm looking for advise on caps  for speaker's crossover. 

I use or used V-caps ( not the Teflon ones. ) and Sonic Craft by-passed with Teflon V-caps.

In my all SS electronics I'm using Teflon V-caps and Teflon Cu V-caps and Sonic Craft Platinum too. All these works great.

Due that Teflon V-caps are expensive and that I need 16.8uf and 4.7uf plus 100uf I would like to know which one could be the best combination for a lower price and with quality performance nearer to the Teflon V-caps.

Your advice is appreciated. Thank's in advance.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

Love to help, but need more info. Please tell us the speaker in question and what you want to gain from the upgrade? What sound quality attributes are you wanting more of or less of? Thanks!