• RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? - GTCharlie 17:54:17 02/19/13 (5)
  In Reply to: RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? posted by Pabloaguas on February 19, 2013 at 14:53:04

  only one way to find out... hehehe. solder them in, and listen.
  
  and yes, those jensen-made AN small C caps haven't been the most reliable. Lots of stories here in the asylum. I use those 630v caps for less than 100v these days.
  

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  • RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? - Pabloaguas 20:38:29 02/20/13 (4)
    In Reply to: RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? posted by GTCharlie on February 19, 2013 at 17:54:17

    Yes, of course!! I won't know fur sure until I solder them in! :)
    
    However, I'm worried about damaging my board if i'm constantly changing capacitors... thought it would be nice to get some opinions here first...
    
    The copper PIO caps that blew were actually made by AN- this was verified by AN and Jensen. Luckily, AN UK has offered to replace them with the new (Mylar, I think) caps.
    
    I'm wondering if the smaller value AN alu caps were reliable... I'm probably paranoid, but I'm worried about them blowing... and damaging other components.
    
    
    

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    • RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? - astrostar59 03:20:33 02/21/13 (3)
      In Reply to: RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? posted by Pabloaguas on February 20, 2013 at 20:38:29

      If it was me, I would look to Mundorfs or if you can afford it, the V-Cap Teflons. I have swopped al of my AN caps out for V-Caps, and the sound is more transparent with stronger dynamics and bass.
      
      I do think Peter sorted the issues with the newer Mylar caps though, but by then I was fed up with 3 x failure situations. In my case it led to DC leaking through to the volume pot (static noise). Thankfully didn't blow any tubes!
      
      BTW the Mundorfs and the V-Caps are VERY load and heat tolerant, important in a Valve amp IMHO. Go Mundorfs if you are tight on money. The V-Caps are REAL nice though, and remember, the cap change will alter the sound more than tubes or interconnects or resistors. For me it was the better.
      

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      • RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? - Pabloaguas 10:26:39 02/21/13 (2)
        In Reply to: RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? posted by astrostar59 on February 21, 2013 at 03:20:33

        Yes! I already changed out my signal coupling caps (C7-C10) with Mundorf Silver/Oils last week... I liked the sound initially, but now I am in that 300-hour burn-in and they are pretty bright. I think I will like the sound (and reliability) once they are burned-in.
        
        However, my question is about the DC/ high frequency filtering caps (C1-C4)... do they affect the sound?
        

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        • RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? - AudioNoteKits 11:19:31 02/21/13 (1)
          In Reply to: RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? posted by Pabloaguas on February 21, 2013 at 10:26:39

          those caps are used to filter out high frequencies outside the audible range - they are located between high voltage HT and ground - do they make a difference to sound? The amp will work fine without them - possibly you might be able to tell the sonic difference without them vs with them but the type of capacitor will not make a big difference - you basically dont want to put in expensive caps in these positions - you want caps that are very robust and can handle a constant 450v DC- Brian Smith
          

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          • RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? - Pabloaguas 09:58:03 02/23/13 (0)
            In Reply to: RE: Kit 1 or Kit 2 High Frequency Filter Capacitors (C1-C4): Does it make a difference sound wise? posted by AudioNoteKits on February 21, 2013 at 11:19:31

            Thanks Brian! I'll solder in those 1000v Solen metalized polyprop. I think they will probably be more robust than PIO caps!
            

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