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MDAC First Listen (Part 00101001)

Discussion in 'audio' started by JohnW, Aug 12, 2015.

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  1. JohnW

    JohnW pfm member

  2. JohnW

    JohnW pfm member

    Poor quality capacitors! :(
     
  3. JohnW

    JohnW pfm member

    As the FWC now allows the extra space, we are investigating the possibility of adding the HDMI interface - it will most likely be an extra "Plug-in card" to avoid delaying the release date.

    If it can be add without delaying the project we will - but either way the Fusion DAC will have "optional" HDMI inputs which will allow multichannel support via the Fusion Master / Slave units or pure DSD extraction from compatible SACD players.

    I'm very happy for this as we will now not need to develop a custom extraction card to be retrofitted to DVD / SACD / BR players :)

    This is the type of advantage working with miniDSP and going FWC has allowed.
     
  4. JohnW

    JohnW pfm member

    The VFET amplifiers will still be built in Czech Republic as they are a custom "One off" design :)
     
  5. JohnW

    JohnW pfm member

    Sonically no....
     
  6. JohnW

    JohnW pfm member

    The internal slot loader is ONLY CD, but via the "Optional" HDMI ports you can connect to a compatible SACD and extract the Bit perfect DSDstream / mulitchannel audio.

    The Fusion DAC(s) can support multichannel audio directly by its Master / Slave interface.
     
  7. JohnW

    JohnW pfm member

    Jack,

    Our first production batch will be 250pcs, with currently around 200 backers and I expect to "loose" about 10 - 20 due to the shift to the FWC, so new backers are very welcome to cover the expected dropouts.... :)
     
  8. JohnW

    JohnW pfm member

    Bob,

    The VFET amps where NEVER going to be bright polished!!! that sounds rather ghastly!

    We will "Ice blast" the surface to give a texture finish like the Uni-body Apple products, anodized Black or silver....

    The VFET amplifiers will match the Fusion DAC (but taller and with a Plasma display bargraph rather then the Fusions touch screen) - below is the basic ID design of the FWC (subject to working on fine details):-

    https://dl.dropboxusercontent.com/u/86116171/Fusion DAC.png

    The front panel is Milled from 15cm Aluminum sheets - and the display area is an IPS colour touch screen.

    Shown is the CD slot loader version, obviously no slot on the non CD versions.

    Its going to be a REALLY Ground breaking stomping product :)
     
  9. jirij

    jirij Virtual Member

    I just hope that amongst all the extra features and built in phono stages, somebody thinks of the children .. err, recording engineers wishing to connect (condenser) microphones directly, without those pesky low quality mixpults/preamps and phantom power injectors. :D

    (edit: in case you didn't get the joke - just kidding, noone wants to have extra knobs on the back that one person has use for)
     
  10. BE718

    BE718 pfm Member

    Not really, it just sounds like the streaming interface that John will be installing may be fairly limited in what it will do - however I understand John reticence for getting involved with having to support something more sophisticated.

    I want to use Roon software, they will be releasing their RoonSpeakers streaming software very soon. This will be integrated into a range of high end dacs/streamers and simple items such as RPI etc as end points.

    Now of course I can always do this via the USB out of the Pi, it would just be nice for it to be integrated internally. My mind is just ticking over the possibilities, I have no idea of how or if this can be successfully implemented.

    As the Pi does have I2S and SPI it sounds like a more sophisticated streamer could well be built in.

    My knowledge is still very limited on the Pis I2S etc, but there is a fair amount of resource out there. I can only recommend a bit of Googling I'm afraid.

    cheers
     
  11. fusion5

    fusion5 on the dark side of hifi...

    Oh yeah :cool:

    I really like the design!

    John, do you have any details on the DSP ic used by miniDSP for the Fusion DAC?

    Will this still be possible with the miniDSP implementation?
     
  12. PhilCTTE

    PhilCTTE Senior mumbler

    Absolutely love that design John.

    For my music source it will still be flac, but it would be nice to have a disc spinner on the occasion I havent got round to ripping. I guess there wouldn't be the capability to use the drive to rip cds ?

    As for AV its got to be BR, hopefully with the 2 MDAC2 Slaves :) I'm still looking for a new house, current one looks like its sold (in one day!!). Fingers crossed I can have a dedicated room purely for music and film. If not I just can't imagine SWMBO (yes a reconciliation) agreeing to a 5.1 ML setup. If this is the case I'm still not 100% sure whether to go the "whole hog" with the slaves for AV as mentioned. I'm even considering a cabin/shed, if the garden size and funds permit. A few I've seen have cellars :cool: for a proper man cave retreat.

    Hope China treats you well , cheers.
     
  13. misterdog

    misterdog Not the canine kind


    Maybe those who currently have 'fusioned' MDACs and are going to have FWC could 'swap' for those who can only live with the original form factor.

    Reducing their disappointment ?
     
  14. iansr

    iansr pfm Member

    I watch films using a projector and a pretty big screen which drops down from the ceiling between my stereo speakers. It's terrific and I don't feel I'm missing anything by not having rear speakers.
     
  15. EIffel

    EIffel Cereal Killer

    The design looks fab, and the feature set is very promising (including future hardware and software expansions if required)... which means I'm looking forward to the final product ;-)

    I would prefer a Pi2 'streamer card' to a more closed alternative, as this would satisfy the needs of the members of the Squeezebox tribe (myself included), as well the Apple contingent. Besides additional support/availability, I also think that there is less risk of obsolecene, as demonstrated by the move from the Pi to the Pi2 in the same form factor. Not a deal breaker either way (and I realise that Pis only have an Ethernet connection and no WiFi by default).
     
  16. banjoman

    banjoman pfm Member

    John
    Would the FWC allow option of a phono stage module to be built in for the future?
     
  17. PhilCTTE

    PhilCTTE Senior mumbler

    With a proper AV processor , surrounds and sub via a BR player can really be fun to recreate a full on cinema experience.
    The ML's soundstage are very impressive and can create an effect to a degree.
    I just need to hear the difference before throwing 1000's into the AV pot.
    Problem with the ML series is getting them in on demo.
    The other issue with this is that I probably wouldn't source from a UK dealer.
     
  18. TimR

    TimR pfm Member

    Hi John, I thought one of the main advantages of developing a custom interface for the Bluray player (e.g. Oppo) was to provide a clock-lock to the DAC. Will a standard HDMI interface provide for clock-locking?
     
  19. iansr

    iansr pfm Member

    Great idea (says a man who happens to have an MDAC Fusion and who will consider all reasonable offers once his FWC arrives) :)
     
  20. Malyq

    Malyq Active Member

    Good idea! I would offer mine - it's a black fusioned MDAC. Location is Germany.

    @John: I'm really thrilled by the progress this project has taken! And am very much looking forward to the FWC DAC :)
     
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