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QUDOS - the brilliant new amplifier boards from Avondale

Discussion in 'd.i.y.' started by misterc6, Jul 10, 2017.

  1. Colin Barron

    Colin Barron pfm Member

    Hi Alan,
    you are talking yourself into another voyager project with these new boards.
  2. 337alant

    337alant Negatively Biased

    Colin with the NCC-300 boards yes ;):D Cant wait
  3. GWM

    GWM Lost in the 70's

    Got a package from Les this morning, a set of Qudos boards and parts to pop into my Voyager amp, some winter fun ahead.
  4. 337alant

    337alant Negatively Biased

    This is sounding more interesting by the minute looks like Ill have to give Les a call ;)

  5. peterm

    peterm pfm Member

    Don't hang around!
    I phoned Les a couple of days ago to order a pair and he's snowed under with demand for his new boards. He quoted me about 4 weeks before I get near the top of his list.
    Worth the wait going by reports so far!

  6. martin clark

    martin clark pinko bodger

    They are!

    LesW graciously sent me a pair of built pcbs about the time this thread started. I need to write-up, but the test amp for now is a lash-up built into an older Deltec 100S case and not pretty (but matches the socketry on my system, inc weird DPA speaker cables - so a drop-in exchange for comparison). Sounds very good :)
  7. misterdog

    misterdog Not the canine kind

    Would you care to elaborate Martin?
  8. martin clark

    martin clark pinko bodger

    Yes, soon :)
  9. James Evans

    James Evans Bedroom Bodger

    Have a pair of bare pcbs here waiting to be built up and swapped into my NCC200 amp for comparison. As ever, lack of time is the enemy!
  10. flashgo

    flashgo DIY Practitioner

    I ordered mine back in July, and am still waiting across the pond. Admittedly, there are some other goodies for the box that could be holding things up. ;)

    My Qudos will be going into an old NAP 250 along with a pair of HCR200s. It'll be interesting to hear where they sound best in an active 3-way.
  11. LesW

    LesW Retired at user request

    Hello Folks, as some of you will know, my assistant Mike has been very ill
    the last few weeks with ascites and has lost three stones in weight during
    that time. In between hospital visits to drain off what is sometimes as much
    as 18 litres of fluid, he's been unable to produce his marvellous work in any
    quantity so supplies of populated boards have been a little scarce to say the least.

    Anyway, the boards for flash and others arrived yesterday and will be winging their way early next week.

    Please accept apologies for the undue delay
  12. flashgo

    flashgo DIY Practitioner

    Best wishes to Mike!
  13. martin clark

    martin clark pinko bodger

    +1 to that!
  14. Pete MB&D

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

    +2 Get well soon Mike.

  15. Pine Marten

    Pine Marten pfm Member

    Sorry to hear this Les. Best wishes to Mike. BTW the monoblock 110's have bedded in well and sound bloody great! So much more detail and control! My ES14's have never sounded so good! Thinking of giving some SBL's a try tho............
    torstoi likes this.
  16. laverda

    laverda pfm Member

    I miss my Revelation 2's and wished I'd never sold them sometimes..great sound in a 6 pack...NCC200
  17. divedeepdog

    divedeepdog pfm Member

    I'm currently using 2x mono 110's for my Revelation 2's and was going to build myself a 6 pack of "mono 110"s based on the NCC200, to convert my Revelation 2's from passive to active.

    Go to Voyager spec, I had the latest till Les upped the game again with Qudos...

    700VA + the front end HCR, quite a step up from vanilla boards :D
  18. grahamdocman

    grahamdocman pfm Member

    Hi Graham,

    Sorry you "sometimes" regret selling your Rev 2's, but I assure you they are really appreciated and I listen to them almost daily. Thanks for selling them. They are a superb speaker and everyone else who has heard them appreciates just how good they are (especially SWMBO who had a few doubts till she heard them). I haven't come across anyone else who owns a pair.

    I'm looking forwards to going fully active.
    What did you use for your active crossover when you had them ?
    I have thought of trying the new Nytech active crossover (set to 3.4 KHz crossover point as recommended by Les) - any thoughts ?


    DDD, regrettably for all sorts of reasons the voyager route isn't an option for the foreseeable future.

    I'm pretty sure I'll try the QUDOS route for my 110's, but I'll wait for a bit more feedback from those who have tried and hopefully compared them to the NCC200 before a final decision.
  19. laverda

    laverda pfm Member

    Hi Graham

    Glad your still enjoying them....I used an White Noise active xover (op-amps) and found I preferred the x point to be 3k8. That was with the 6 pack not sure with a 4 pack but thats the beauty of DIY you can tweak till you get where you want to be..I built a xover for a friend using a Kevin Mount product two way xover with EQ..(see eBay) I think at the time they were £30 a board ready to go and very impressed I was too..

    I'm just starting a little 4 pack active system (with a miniDSP) using the QUDOS amps. Ive spent the past few years playing with Class A amplification (A whole new world) The fact that Les has now incorporated a complementry pair and can be driven with high/er bias is just asking to be good. I did once run the NCC200s with a high bias well over 100mv but I did;nt have the right case work to get the heat away, I have now.....
    torstoi likes this.
  20. laverda

    laverda pfm Member

    So the build begins.....thanks Les



    Mini Cap 6


    I'll post some more as it comes together...
    torstoi likes this.

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