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Thread: Re-Capping

  1. #11
    Join Date: Jun 2010

    Location: Liverpool, UK.

    Posts: 1,228
    I'm Geoff.

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    All of my amps have been fully serviced and recapped but the newest of them is now thirty years old. The other two are forty.
    I find peace of mind worthy of investment and I am not prepared to risk damage to my speakers by having an amp go boom.
    Main system: Sony TTS8000; AT1010; Audio Technica Art1; The Lentek; Cambridge 851n, Yamaha NS1000.
    System 2 - SBT; Technics SH-X1000 DAC; Denon PMA-850

  2. #12
    Join Date: Nov 2017

    Location: Dutch now living in Milton Keynes in the United Kingdom

    Posts: 59
    I'm Rob.

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    I recapped the crossovers of my Magnat all ribbon 8 speakers, what I found was that they deteriorate over the years and because it goes so slowly you don't hear it untill a certain point. After I recapped the Crossovers the change was night and day, doesn't that work the same with amplifiers, the quality of the capasitors have improved over the years, and I was told that the old oil based types loose halve their value over a certain amount of years.

  3. #13
    Join Date: Mar 2010

    Location: Sheffield

    Posts: 2,898
    I'm Simon.

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    I took A set of 40 year old Nichcon bipolar paper in oils out of my Yamaha's and replaced them with huge film caps. the original caps were all still within 5% of their nominal rated spec (they were 10% rated parts, so even after 40 years they were still 2X as close to their spec as what was printed on the cases).
    Kuzma Stabi/S 12", (LP12-bastard) DC motor and optical tacho psu, Benz LP, Paradise (phonostage). MB-Pro, Brooklyn dac and psu, Bruno Putzeys balanced pre, mod86p dual mono amps, Yamaha NS1000m

  4. #14
    Join Date: Apr 2016

    Location: Bishops Stortford

    Posts: 1,250
    I'm Chris.

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    Quote Originally Posted by Rob Tube View Post
    I recapped the crossovers of my Magnat all ribbon 8 speakers, what I found was that they deteriorate over the years and because it goes so slowly you don't hear it untill a certain point. After I recapped the Crossovers the change was night and day, doesn't that work the same with amplifiers, the quality of the capasitors have improved over the years, and I was told that the old oil based types loose halve their value over a certain amount of years.
    And how many years would that be?
    Source
    SW1X Universal Music Server UMS I Signature with Power Supply Unit PSU I Signature
    SW1X USB II
    SW1X DAC III Special
    Audiolab 6000 CDT transport
    Amps
    Pre amps -- Hi fi Collective twin mono ladder stepped attenuator, with Charcroft Z-foil and silver wired. And First Watt B1 active no gain buffer.
    Power amps -- Welborne 45 SET monoblocks 1.8W / Decware Taboo 6W / Elekit 300B TU-8600SVK plus further improved components 9W / ICE Power 1000W
    Speakers
    Highly modified Endorphin P17 open baffle speakers containing both vintage and modern alnico drivers and paper cones. All silver wired - 8" Cube Audio FC8 full range drivers and vintage 15" Altec VOTT 416 bass drivers. All sat on Townsend Audio Podium seismic isolation platforms.
    BK Electronics XLS400FF Sub.
    Cabling
    Silver mains cables, interconnects and speaker cables by SW1X
    Headphones
    HRT HeadStreamer and SennHeiser HD650 headphones

  5. #15
    Join Date: Nov 2017

    Location: Dutch now living in Milton Keynes in the United Kingdom

    Posts: 59
    I'm Rob.

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    I have to ask again I did this years ago, but the speakers were between 30 and 40 years old, I still have them in storage.

  6. #16
    Join Date: Sep 2017

    Location: Northampton

    Posts: 177
    I'm Chris.

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    Quote Originally Posted by Audio Al View Post
    What amp is it and how old ?
    It's a NAD 214. I bought it new in 2001.

  7. #17
    Join Date: Dec 2017

    Location: Ontario, Canada

    Posts: 104
    I'm Dan.

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    Quote Originally Posted by Lerxst View Post
    It's a NAD 214. I bought it new in 2001.
    16 years is not that long for most modern amps, however this is a NAD. There may be some that need to be replaced especially those in close proximity to the heat sinks. Don't get me wrong, i like NAD gear, it is very good sounding, cost effective gear, but there are weak spots.

  8. #18
    Audio Al is offline Pishanto Specialist & Super-Daftee
    Join Date: May 2012

    Location: Dagenham Essex

    Posts: 11,215
    I'm Allen.

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    Quote Originally Posted by Lerxst View Post
    It's a NAD 214. I bought it new in 2001.
    Sounds like this when someting goes wrong
    https://www.youtube.com/watch?v=FQ5tJxl0ros
    [

  9. #19
    Join Date: Mar 2017

    Location: Seaford UK

    Posts: 1,861
    I'm Dennis.

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    What a tedious monologue.

  10. #20
    Join Date: Apr 2015

    Location: Central Virginia

    Posts: 1,736
    I'm Russell.

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    A visual inspection doesn’t hurt, to see if any are bulging or leaking. But failing caps don’t have to do either. Hum is a major symptom, and sounding muddied. But if it sounds good, don’t worry too much. When you get that feeling that something is intrinsically wrong with it, caps is a great place to start. Just my personal feelings on the matter . My amp is 20 years old or more, but sounds amazing and I’m not touching it without good reason.


    Sent from my iPad using Tapatalk

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