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MDAC First Listen (part 00111001)

Discussion in 'audio' started by ti33er, Sep 12, 2017.

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  1. JohnW

    JohnW pfm member

    Yes :)
    Rune likes this.
  2. jadidih101

    jadidih101 pfm Member

    Will there be a remote for the volume control? If so, how are planning to implement that?
  3. DimitryZ

    DimitryZ pfm Member

    For something really optimized and hot rodded like this, you would want to use it with a preamp (if at all) that itself has a bypass option. Alternatively, you may want to enable clean source switching (GoldPT switchbox at the amp, or similar). Plugging and unplugging cables is really the best way.

    I assume, that once developed, this volume technique will be patented.
  4. DimitryZ

    DimitryZ pfm Member

    I confess I am intrigued...When this device is available, if it gets to be for sale to the general public, I will give it a try.
  5. Rune

    Rune pfm Member

    Don’t bet on general availability,
    That is not how it works.Most of us committed to it 4 years ago. But maybe John will let you get on board now anyway.
  6. DimitryZ

    DimitryZ pfm Member

    That's fine...I would never wait this long. If he builds some units, they will eventually become available - from his company or from other owners on the used market. It's not like the Mona Lisa...

    I definitely don't want to be "on board" this train. However, the tech is intriguing and may sound good. I will keep an eye on it.
    kennyh likes this.
  7. kennyh

    kennyh pfm Member

    True, no favours being done here.
  8. timola

    timola pfm Member

    I don't use any other inputs like tuners or turntables (for which the FDAC will be best suited) so I'm hoping the preamp stage of the MDAC2 is state of the art too and from John's recent posts it clearly should be.
  9. Bob L

    Bob L pfm Member

    I'm a bit late to join this conversation, partly because for my normal listening I run at 0dB and attenuate via my Creek passive preamp, which allows easy switchover to FM (Arcam FMJ), which I use a lot( so for MDAC2 I will need the by-pass). I tried setting the Creek to maximum, and with this I find I would use -25dB (up to perhaps -20dB if I'm home alone..). This seems to put me in the wimpish end of the range, but it gives a sound power level at the listening position of about 75dB in ff passages; 0dB would probably wreck my 25 year old speakers, what remains of my hearing, and my marriage. That's for computer or CD input via USB. I also connect the digital audio from the TV to an optical input, and here the 48k signal gives a much lower level, so I need to run at -15dB or higher for this.

    For headphones (AKG701) I find that -20dB is about right.
    JohnW likes this.
  10. ti33er

    ti33er pfm Member

    For those not on Facebook, John collected a proper 250kg Reflow Oven from Poland and had to disassemble most of it to get down into the Lab’s nearly all back together (or might be by now)
    wintoid likes this.
  11. davidjt

    davidjt pfm Member

    Thanks for the update. I'm part of the wrong generation, I know, but the gui is terrible imo. if John updates by 'commenting' on a previous post it's not apparent - you have to scroll through all comments to find out. So bad it could almost be Microsoft! :p
    Mark Dirac and TimR like this.
  12. ti33er

    ti33er pfm Member

    Lol yes I hear you, terrible format (like Gmail, conversations all backwards, devised by some genius to make things easier to read somehow) 8-/
  13. Reenberg

    Reenberg pfm Member

    txs for the update. Im to stubborn to use Facebook, eave for such an important thins like this ;). I don't complain, I know I can just make an account.
  14. Jeroengrt

    Jeroengrt Active Member

    Is there any news on the mdac2? when would it be available?
  15. misterdog

    misterdog Not the canine kind

    Christmas, though no year yet specified.
    HarryB, Wilson and Asphaltradler like this.
  16. Asphaltradler

    Asphaltradler pfm Member

    Christmas, though no century yet specified ;)
    HarryB likes this.
  17. scubaboy

    scubaboy pfm Member

    can anyone comment on how the mini streamer is performing? From a software point of view is it refined/plug and play or does it still require some user skill to get it working optimally?
  18. s1h1

    s1h1 performing within expectations

    I think only one of the 'beta testers' of the mini streamer,@Rune ,has received a unit.
  19. beammeup

    beammeup pfm Member

    I'm pending my mini streamer - I can have it as a beta tester but I wanted a few bugs ironed out first before getting mine (I have plenty of streamers to be getting on with for now). However John - if you think it's time - send it on :)
  20. JohnW

    JohnW pfm member


    Software's getting more stable now and getting to grips with the thermal issues via software and hardware changes (chassis & Heatsink).

    Out of the original 7 beta units, 3 are in the field - if your Ok to operate yours without the chassis (until they are ready) then I can ship your PCB + PSU. You can simply slide the PCB into the Chassis once they are available.
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