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    Coupling / Signal Capacitors

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    Brap

    Posts : 83
    Join date : 2013-11-28
    Age : 61
    Location : Lisle, Illinois

    Coupling / Signal Capacitors

    Post by Brap on Thu Mar 20, 2014 3:49 pm

    Has anyone upgraded to Mundorf Silver / oil or Gold / Silver / oil capacitors? If so what were the main improvements you experienced with the ST-70?

    corndog71

    Posts : 454
    Join date : 2013-03-19
    Location : It can get windy here

    Re: Coupling / Signal Capacitors

    Post by corndog71 on Thu Mar 20, 2014 8:49 pm

    I haven't yet but I've heard great things about them. One of these days I'll check them out.

    arledgsc

    Posts : 340
    Join date : 2012-11-30
    Location : SF Bay CA

    Re: Coupling / Signal Capacitors

    Post by arledgsc on Thu Mar 20, 2014 11:53 pm

    The Mundorfs with oil are suppose to be good...

    Alan-14

    Posts : 46
    Join date : 2012-03-31
    Age : 56
    Location : Melbourne - Australia

    Re: Coupling / Signal Capacitors

    Post by Alan-14 on Fri Mar 21, 2014 6:42 pm

    I have both the Russian PIO and the Mundorf Silver In Oil caps as input options in my SP-14 preamp ... and there is not much between them.

    I have yet to have a chance to have a critical listen between the two ... but the differences would be subtle rather than obvious.

    Well thats my 2c worth anyway.

    Zimmer64

    Posts : 113
    Join date : 2013-01-29
    Age : 52
    Location : Switzerland

    Re: Coupling / Signal Capacitors

    Post by Zimmer64 on Sat Mar 22, 2014 2:46 am

    I have the two different Mundorf's in my SP14. My subjective impression of the difference in sound between the Silver/Oil vs. the Gold/Silver Mundorf's is such that the S/O are smoother with less top end. High frequencies are somewhat down vs. the G/S. The difference is not huge, but noticeable in direct comparison. Bass and mids are practically the same.

    Imaging wise the sound stage of the G/S is clearly wider and deeper. Classical orchestras or small Jazz combos are equally well reproduced.

    On good recordings I definitely prefer the G/S. The S/O are a bit more forgiving with bad recordings as they seem to round shouty edges a little bit off. They may also be the better choice if one has brighter sounding components in their setup.

    Just my two cents.

    Michael

    Brap

    Posts : 83
    Join date : 2013-11-28
    Age : 61
    Location : Lisle, Illinois

    Re: Coupling / Signal Capacitors

    Post by Brap on Mon Mar 24, 2014 10:15 am

    Thanks for all your feedback (or should I say input!) I replaced some Auricaps in a Joplin (DIY HiFi supply) 2A3 PP amp I made 8 years ago with some Mundorf GSO coupling caps. The soundstage really opened up dramatically to the point I had to re-position my Klipsch Forte's a bit. I have been told the GSO's are the "global reference" for coupling caps. Just checking. Very happy with the ST-70 now having eh Russian PIO's - but always fiddling around!

    sKiZo

    Posts : 1310
    Join date : 2013-04-01
    Location : Michigan USA

    Re: Coupling / Signal Capacitors

    Post by sKiZo on Mon Mar 24, 2014 1:08 pm

    How many hours on those PIOs? Way I hear it, those can take up to 400 hours to break in properly.

    Brap

    Posts : 83
    Join date : 2013-11-28
    Age : 61
    Location : Lisle, Illinois

    Re: Coupling / Signal Capacitors

    Post by Brap on Mon Mar 24, 2014 1:09 pm

    Oh I would say over 200. I heard that was the "magic" timeframe!

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