The best coupling caps in power amp ?? Mundorf, Infinicap ??

Do your homework, as you’ll find that one or two expensive "boutique" caps mentioned are very likely just re-branded Solens (which are far cheaper) compare diameter/length/lead length for the same uF and voltage and you will see why.

Cheers George

Do your homework, as you’ll find that one or two expensive "boutique" caps mentioned are very likely just re-branded Solens (which are far cheaper) compare diameter/length/lead length for the same uF and voltage and you will see why.

Cheers George

If you know which boutique company just re brands Solen caps, why not name them?

Autospec,

I suspect you have been out of touch with the boutique cap market for a few years.  InfiniCaps (and WonderCaps before them) are quite dated and no longer in the running for a high quality coupling cap, IMO.  The regular Mundorf Supreme is a fairly inexpensive cap that I like a lot but some people will find it too colored.  It is a very warm and slightly opaque sound but very musical and very dynamic.  The more expensive Mundorfs like the Silver, Silver/Oil and Silver/Gold/Oil all offer a more extended high-frequency response with more detail and more transparency, but the tonal balance is not as natural to my ears as the standard Supreme.

If your budget has a bit more room, my very favorite coupling cap is the Copper V-Cap (CuTF).  It has the best combination of sound qualities of any coupling cap I have tried, and it excels in the areas that are most important to me: neutral tonal balance, excellent detail and excellent dynamics.  Out of the 20+ coupling caps I have tried over the years, this is my favorite.  Some folks prefer the Duelund CAST to the V-Caps, but I consistently prefer the V-Caps (either TFTF or CuTF versions). 

I have not tried the Jupiter copper foils (contrary to Charles' post above) but they also have their fans.   

I would agree with all that has been said regarding great choices. I like the Jupiter copper foil in wax caps quite a lot. Jupiter and Duelund make their own caps in house and both sound just fanastic. 

I can’t disagree with salectric’s point, it boils down to personal preferences and that will never change. I haven’t used the V Cap copper but have experience with their Teflon tin foil  and OIMP capacitors. We all simply hear what we hear. I could see where someone would categorize the Teflon V Cap as more ideally neutral and a preferred choice depending on the particular component, system character and objectives.

Jupiter and Duelund CAST are beautifully "natural"/organic in character/tone and this is what I find most important and desirable. It depends on what a listener prioritizes, no right or wrong. There’s a capacitor available that will suit a given taste once one determines what specific sound they’re seeking. Plenty of good choices.
Charles