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In Reply to: RE: cApacitors are the new cables posted by SirAnthony on August 16, 2015 at 21:29:48
If you have to add a bypass capacitor across a Dueland primary capacitor to reach some sort of Nirvana, can the Dueland really be worth the very high cost? (I guess it's all in the ear of the listener.) FWIW, I have had at least two Jensen silver foil capacitors and one copper type go leaky inside an amplifier. The failure of the copper one led to the loss of a power tube. Jensen silver and copper types are therefore banned from my stash. I have read that they've taken steps to improve reliability, however.
My preference is to use the best (sounding) coupling capacitors possible and not to bypass them; I nearly always hear a discontinuity in sound characteristics when I do otherwise. This applies only to coupling capacitors. In power supplies, I do advocate bypassing high value electrolytic with film capacitors. And I do agree with whoever wrote that a good film and foil capacitor will (nearly) always sound better than a metallized film type, although I also think Auricaps are quite a bargain among metallized films. These are only my opinions based on my own listening and tweaking.
So, while we're at it, has anyone listened to the copper/teflon Vcaps???? Are they worth the cost?
Thanks.
Follow Ups:
Late posting but have tried both the TfTF and the CuTF Vcaps in a hybrid tube amp (Counterpoint Platinum NP220) as coupling capacitors as well as the Dynamicap, some VTV oil caps, and a few others (VTVs were nice, no longer made. Leaky!).First the sound of the substitutions was clearly audible in every case.
The CuTF caps were audibly the best immediately, and once they were broken in with about 250 hours or so of use, they were even a little more transparent. Replacing the TfTFs with the CuTF's, my reaction was like, "This is really natural!". They were worth the extra cost to me because of this, but cost wasn't really a consideration for me.
The overall sound of both Vcaps is very much of the same family. Both Vcaps are similar in having great tonal balance, and neither sound excessively detailed or dry. However, compared with the tin foil VCaps, the Coppers have a more natural presentation. The tins are cool and just a wee bit sterile sounding. The CuTF's are have a touch more warmth/wetness(?) and are a bit more transparent allowing you to hear just a little more ambience of the recording venue and better tonal decay of instruments. Everything has more presence but they are not forward sounding - image placement for both is about the same.
As near as I can tell, the CuTF Vcaps sound almost exactly like the Duelund Cast Copper capacitors (for Speakers) once broken in. They're identical twins. However, the Duelunds are even more expensive and tough to break in before they sound good (hundreds of hours) especially for larger values. I had to use a cable cooker!
Edits: 08/31/15
I've taken the plunge. Bought some more TFTFs for one preamp and several CuTFs for two other preamps in use. I've never ever spent that much on parts at one go.
I got an info from Intertechnik:
For the use in an active circuit capacitors need the CE certification and because of the high certification costs Intertechnik didn't request one.
Edits: 09/03/15 09/03/15
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