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MDAC First Listen (part 00101000)

Discussion in 'audio' started by fusion5, Jul 26, 2015.

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  1. timola

    timola pfm Member

    It's a very well made unit.....rather expensive though!
     
  2. Steven Toy

    Steven Toy L3 Toy

    I'd prefer an in-house, in-box one, mind.
     
  3. timow

    timow Well-Known Member

    It's very misleading to write that project roadmap is same as the contract to which we are all effectively signed. Project roadmap is what it says. It includes predefined measurable milestones to get the project finish (usually in scheduled time).

    I would say that "signed contract" instead in this case covers project original design goals, planned features, specifications, estimated costs provided, planned stages, planned payments steps and projected time schedule.
     
  4. JohnW

    JohnW pfm member

    From a development schedule there is no difference between smaller MDAC based boards or FWC.

    FWC has the benefit that the miniDSP team will design the from panel and create the UI so removing this from Dominiks workload.

    Analogue PCB is targeted to go into production October.
     
  5. JohnW

    JohnW pfm member

    John,

    FWC will happen (even if its via miniDSP), if you want the best DAC sell your silver MDAC.

    The more I come to terms with the possibilities of the FWC and how I've compromised the design to squeeze it into the MDAC chassis - then FWC just makes even more sense.

    The original aim of this project was to design a much improved MDAC - the best DAC I could design at a reasonable price. I'm NOT prepared to compromise 4 years of work just to squeeze the design into an unsuitable enclosure - it simply does not make sense. Why would anyone want a lessor unit - is the small footprint more important then sound quality and features?

    If the vote goes for the MDAC chassis - then I'll build the "second rate unit" wash my hands of it and concentrate on the FWC version for the future - second best is not good enough for me!

    The primary goal is for the best sound DAC for the money - NOT that its has to be squeezed into a small chassis - for me its simply about the sound quality.

    I'm sorry for the "Fork in the road" at such a late stage, but the possibility of a FWC has only recently became a practical reality.

    When I look at how the design can be improved by removing the size limitations then I have no choice... I really struggled to squeeze the design onto the PCB area available and sadly compromised performance to this end.

    The Analogue board will be in production towards the end of October the extra space the FWC affords allows me allows me to add a much improved local PSU section (and many other small details) - without the size limitation these sections can be quickly reworked and designed "as I would have liked".

    My priority is to meet the October deadline if we are to start shipping towards the end of this year.

    We have internally discussed splitting the "At Cost" payments into two installments - the first for the Analogue board, and the balance once the Digital PCB hits production thus reducing the financial burden.

    Even Audiolab have gone for a full width case for there soon to be launched MDAC+ design - there are just too many limitations in such a small chassis.
     
  6. JohnW

    JohnW pfm member

    Chris,

    The FWC will not impact timescales, there will be a increase in cost (less then GBP300) less then your MDAC can be sold for :)

    Yes, sound quality above all else (at an affordable price) should be the primary goal :)

    I kinda when that direction when I sacrificed Dynamic range for sound quality by using MOSFET's in the input stage.....
     
  7. JohnW

    JohnW pfm member

    I should point out in the context of this debate that its more expensive then the FWC with its internal HQ PSU and IPS touch panel display and thats the point, the FWC just makes sense, ignoring its extra features and the extra digital I/O I can now add.
     
  8. jirij

    jirij Virtual Member

    I know it's a bit sideways question, but: what about the remote? Any plans to keep the old MDAC remote working? Any plans to use a (much) more extended one or are most of the features going to be touchscreen only?

    I know some people wanted to have some remote functions customized, would a generic mapping tool for certain predefined actions (ie. switch inputs / switch relays on outputs / ..) bind-able onto any button be a reasonable goal? The IR "learning" thing, but in reverse - MDAC2 learning the remote. Or is it too far fetched?

    The same actions could be also bound on the touchscreen on some "home screen". I can see myself using the "switch headphones/speakers" button quite often.

    There was also some talk about some apple remotes or something, is that a thing to be considered?

    Thanks,
    Jiri
     
  9. Alavan

    Alavan pfm Member

    Hi John,
    I was away for a week. I am sorry that I may have missed your message. Is there still a chance that you have a look at my MDAC? Thanks!
     
  10. MartinDurham

    MartinDurham pfm Member

    That's my questions answered, count me in John :D

    Martin
     
  11. Obi1

    Obi1 Swedish HiFi enthusiast

    I voted "No" on the poll, but after reading up on everything have changed my mind, I would consider a FWC.
     
  12. JohnW

    JohnW pfm member

    Yes the current MDAC remote will be supported, but the fullwidth chassis will be supplied with a new remote handset so that the MDAC can be sold complete to recoup the extra cost of the FWC.

    Possible, but a question of software priorities...

    Actually there is a physical spare "Function" button on the FWC front panel that can be software assigned by the user, I had in mind the following assignable functions:-

    CD Eject

    Balanced headphone select

    6.3mm Headphone select

    Mute

    You get the idea.....

    Yep - we can support the apple handset, in fact it might be the best option for the FWC...
     
  13. JohnW

    JohnW pfm member

    Don't worry, I'll post an official poll here once we firmed up the pricing and extra features etc.

    I suspect there has been some double voting as already 140 votes have been counted yet we only have around 200 members, and some are Slave unit owners...
     
  14. JohnW

    JohnW pfm member

    Cheers Martin for your support :) its much appreciated at times like this :)
     
  15. JohnW

    JohnW pfm member

    Alavan,

    I did reply to your post but theres been so much recent traffic that I'm sure you missed it.

    I'll arrange IAG China to send you a 230V ac PSU to you directly in Beijing.
     
  16. JohnW

    JohnW pfm member

    http://finance.yahoo.com/news/china-knocked-off-range-rover-135006250.html

    How can the Chinese government allow this?

    For the PFM Fusion Dac production I'll personally build and test each unit here in HK, not looking forward to being away from Renata and the Pups for so long, but its my personal guarantee of quality :)
     
  17. fusion5

    fusion5 on the dark side of hifi...

    FWC it is then! :cool:

    Some questions come into mind:
    1. Does this mean we can still connect up to 3 slaves AND have sufficient digital inputs?
    2. Can we get front panel headphone connectors or both front and rear?
    3. You did mention a single pcb option earlier. Do we all get L3 (ADC) now?
     
  18. timow

    timow Well-Known Member

    Have you taken account custom dutys and value-added taxes which add costs to project participants if you start delivering packages from HK to EU countries?
     
  19. hluga

    hluga pfm Member

    +1 This is one issue i've pointed out in my latest post. I'm in for MDAC FWC and VFET amp but the costs raises due to the EUR/GBP rates. Isn't it possible to pay using EUR ?

    Best regards
    P.S.:
    1 - This thread is moving so far that i can't find the cases projected designs
    2 - Do you plan to make easy to install the CDP inside of the FWC so one could do it on DIY basis ? What could be the extra cost for the CDP option ?
     
  20. JohnW

    JohnW pfm member

    Yes, we are considering the Duties - even if I shipped from Czech Rep, I'd have to pay duties somewhere along the line.
     
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