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Should I splash the cash on a Goldpoint?

Discussion in 'd.i.y.' started by chiily, Aug 22, 2017.

  1. cjarchez

    cjarchez pfm Member

    Another Khozmo fan here. Popped one into a DIY Aclass pre-amp and am delighted with the results (upgraded from a Valab stepper). I know others who have used the DACT and report siimilar results. I really like the 64 steps, for more usable than 32.
  2. chiily

    chiily PFM Special Builder

    And now I've just found this in my parts box..


    9 years old and working fine...

    I feel an acrylic fronted B4 pre-amp coming on.
  3. James

    James Lord of the Erg\o/s

    I would like to replace an 32-indent (ALPS) attenuator with a stepped one on my preamp, but I can't see any maker of a 32-stepper. Can anyone point me in the right direction, besides squirting contact cleaner into the existing component?
  4. Pete MB&D

    Pete MB&D Pete Maddex, the one and only!

    Goldpoint do a 47 step one.

  5. James

    James Lord of the Erg\o/s

    I know. I'm after a 32-step to match the volume dial markings.
  6. chrisn

    chrisn pfm Member

    Here's a picture with the Valab fitted, sound is improved I think
    Lower volume steps are a little coarse but acceptable


    There is enough room to flush fit a Goldpoint just, but the spindle will stick out 25mm!
    Has anyone fitted one?

    Goldpoint 24 20k would seem a good move and reportedly has better low volume steps?
    Would 25k be better from this point of view?
    Should I try x2 monos and do away with the selector?
  7. chrisn

    chrisn pfm Member

    Thanks Tony for the new forum,
    My Goldpoint is stuck with Parcelforce. Anyone else any experience?
    Last edited: Nov 10, 2017
  8. Arkless Electronics

    Arkless Electronics Trade: Arkless

    If I ever stumble across one of them Round Tuit's I'm planning on making myself a stepped attenuator using reed relays.. I dug out some old boards with a load of mil spec reed relays and started on designing the electronics to control the relays (TTL. Non of those new fangled PIC's or anything here!) but that's as far as I got with it so far.
  9. Julf

    Julf Evil brother of Mark V Shaney

    Before you do that, I suggest you read the article on reed relay distortion by Samuel Groner and Bruno Putzeys in Linear Audio volume 13.

  10. Arkless Electronics

    Arkless Electronics Trade: Arkless

    Interesting. But those distortion levels are infinitesimal and I'm unlikely to be putting more than a mA through the contacts. Building it for zero money from parts to hand is the overriding concern...
  11. Julf

    Julf Evil brother of Mark V Shaney

    I agree. I just found the difference interesting.
  12. chrisn

    chrisn pfm Member

    Last edited: Nov 19, 2017
  13. 337alant

    337alant Negatively Biased

    Looks a nice neat job how does it sound ?

  14. chrisn

    chrisn pfm Member

    I tried the Valab ebay offering for a couple of weeks which sounded good but had an agricultural feel and the steps were useless

    The Goldpoint however is amazing in terms of sound quality, clear and spacious with a sweet sound
    Listening through active SBLs is a revelation
    I will do a careful comparison with the 52 Scap, but at the moment I think the 72 Goldpoint may beat it
  15. Pete MB&D

    Pete MB&D Pete Maddex, the one and only!

    I knew you would end up with one, dam good aren’t they.
    Can’t believe any one would use a potentiometer.


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