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About Juancho

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Wigwam Info

  • Digital Source 1
  • Digital Source 2
  • DAC
    Customised DDDac
  • Pre-Amp
    Blue Velvet based
  • Power Amp/s
    Mastersound 845 mono
  • My Speakers
    Wilmslow Prestige

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  1. Juancho

    PIO capacitors

    The True Copper Max is the one you want for signal duties in amps
  2. Juancho

    PIO capacitors

  3. Juancho

    PIO capacitors

    All that said, looking at your post, they are in the bias circuit, not the signal path. In which case, I'd just use Audyn KP SN. I'm currently trying them for signal coupling in my 845 and they're so close to the Mundorfs that I wouldn't bother taking the lid off again to change them. They are not in the bias circuit. When a coupling cap to the output valves fails the output valves are over biased and run away /red plate etc. I like Audyn true copper or Mumford ZN if you want cheaper. Make sure they are the same voltage rating. Old AN pios failed regularly as the chemicals broke down after a few years. I don't know about newer ones. Sent from my ONEPLUS A5000 using Tapatalk
  4. Juancho

    Disappointing Vinyl Story

    Don't think for a moment that digital is the answer. While much of the jazz and classical I love is available in decent quality it's a constant disappointment that friends can come round and cue up a favourite pop or contemporary tune only for it to sound awful....... Sent from my ONEPLUS A5000 using Tapatalk
  5. Juancho

    Qobuz Streaming Quality

    I've just taken out a Tidal subscription. SQ seems much better so far, the interface is light years' ahead, and the App actually works on my Android phone! progress!
  6. Audio Al came round last Sunday to collect his repaired Audio Innovations S500 amp and I played him his favourite Tears for Fears track via Qobuz and it sounded complete shite-and I'm not talking about his musical taste either! I tried some more random tracks and some sound great, others flat as pancakes. I've read that Qobuz and others upsample MP3 some tracks to CD quality and I guess this would explain things. It's not an internet problem. Netflix plays without problem with great sound and visual quality and I've got it set to max quality CD and above. Anyone else experiencing this or care to comment? David
  7. Hi There,

    I don't know if I can help you but i run a repair, upgrade and new build service from Wimbledon, so reasonably easy to get to from Pompey! I specialise in valve equipment and Dacs, but do some other solid state stuff as well particularly upgrades. Here's my Website https://wordpress.com/view/adaudioconsultants.wordpress.com      If you search on HiFi Wigwam or AOS you'll find plenty of recommendations.



    1. Shakey_Studioincar


      Hi David, 

      I'll have a read through the website and get in touch!



  8. A lot of ARC data is available on line. If not, the factory will supply schematics and component valued Sent from my ONEPLUS A5000 using Tapatalk
  9. Juancho

    Measurements, Compatibility and Ears 👂

    But sounding 'sublime' is evidenced by large numbers sold, owner satisfaction and large numbers commanding good secondhand values. And I test these on loads like the Tannoys they have no right to sound good with those measurements
  10. Juancho

    Measurements, Compatibility and Ears 👂

    For me the classic example is the Audio Innovations 500/700 family. Measure shite but sound sublime and even drive my hard to drive Tannoy Canterbury's despite their almost non existent damping factor
  11. Juancho

    Measurements, Compatibility and Ears 👂

    I beg to differ with T Amps. Firstly there's T amps and T amps so you can't generalise like that. And they react well to a decent power supply. Secondly the one I bought always sounds pleasant and detailed with a fair amount of punch. Of course, my handbuilt valve amps are better, but at significantly higher cost and complexity Sent from my ONEPLUS A5000 using Tapatalk
  12. Juancho

    Audio innovations Series 500 Amp

    There's plenty of ways to make these amps even better. Have a look here for some ideas https://adaudioconsultants.wordpress.com
  13. Juancho

    Audio innovations Series 500 Amp

    There is no problem with the Sovtek 5881s as direct replacements. I can't vouch for all other makes as many modern valves simply quote the original spec without actually meeting it David
  14. Juancho

    Audio innovations Series 500 Amp

    Hi, I've serviced /upgraded a dozen of these this year's I there's plenty out there! Clients split into three camps for valves: NOS which are expensive, 5881s which are very smooth across the range, and kt77s which offer a bit more punch across the range. I'd probably go with Genalex kt77s myself David Sent from my ONEPLUS A5000 using Tapatalk
  15. Juancho

    845 replacement valves

    I recently bought Shuguang 845bs for my Mastersound 845 monoblocs and am very happy with them. Don't know what signal valves yours use but Sophia 6sn7s were a nice upgrade over the standard EHs Sent from my ONEPLUS A5000 using Tapatalk