capacitor question?

[the_doc735]

Careful now! Down with this sort of thing!

[the_doc735]

I'd suggest an output buffer stage that is load tolerant would be a start. Swapping caps is just a band aid for the technically insufficient.

hi,

how do you know it doesn't already have an output buffer stage that is load tolerant? cheers!

[Jimbo]

Capacitor review. This guy is dedicated!
http://www.humblehomemadehifi.com/Cap.html

[the_doc735]

Capacitor review. This guy is dedicated!
http://www.humblehomemadehifi.com/Cap.html

yes, he certainly is

[Firebottle]

According to the Cary data the output impedance is only 8 ohms, that is very low for a triode buffer so I am a little suspicious.

As the DAC offers XLR balanced as well as RCA outputs I suspect the output is from a solid state buffer.
Either way if the 8 ohm output impedance is to be believed then you should have no problem with any load.

Also as stated by Cary you only need low voltage capacitors, the supply voltage on the 6922 valves is only 24V according to the data.

[the_doc735]

According to the Cary data the output impedance is only 8 ohms, that is very low for a triode buffer so I am a little suspicious.

As the DAC offers XLR balanced as well as RCA outputs I suspect the output is from a solid state buffer.
Either way if the 8 ohm output impedance is to be believed then you should have no problem with any load.

Also as stated by Cary you only need low voltage capacitors, the supply voltage on the 6922 valves is only 24V according to the data.

yes, I only need low voltage caps but Cary also said there's no issue with using 100, 250, 400, 630, 800, volt caps as long as it's above the rated "24v +" it should be fine. Can you recommend any 25v-100v caps that are of a quality that befits the Cary 100t DAC? Highly reputable etc? The jantzen z-cap superior has very good reviews everywhere and only around £15 each (3,9 Uf) "BUT!" they are big and 800v!!

[Firebottle]

I cannot find any quality polypropylene capacitors rated at less than 250V

[the_doc735]

I cannot find any quality polypropylene capacitors rated at less than 250V

Yep! ~ that's my point!

the current ones are 250v and the previous ones were 310v (afaik)

Cheers!

[the_doc735]

interesting opinion here:

http://aeaaudio.com/audiophile-quali...simple-re-cap/

[the_doc735]

"Is it possible that at one end (polyester) we get the phrase, "hard and gritty", and at the other end (polypropylene) we get, "sucks the life out of the music"? Perhaps somewhere in the middle (Teflon?) lies just the right amount of "edge"? The engineer in me wants to reject all of this because the residuals are so small, but when you have a huge amount of anecdotal evidence, it's wise to at least speculate. I believe this would also be consistent with the almost universal high end rejection of amplifiers having near zero harmonic output, though admittedly the ability of people to distinguish different amplifiers in double blind testing has been shown nearly impossible".

Conrad R. Hoffman