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Schiit Happened: The Story of the World's Most Improbable Start-Up

Discussion in 'Jason Stoddard' started by jason stoddard, Jan 23, 2014.
  1. Smithington
    Wow, I had no idea. Thanks for the education, I think.:hushed:
    Last edited: Jan 31, 2019
    33na3rd and Zojokkeli like this.
  2. CAPT Deadpool
    Yes, I was referring to the benefits derived from using GaN vice Silcon for the internal components. I realize GaN can be used in multiple topologies. I've built multiple Bottlehead and DIYAudiostore power supplies and I'm in the process of upgrading my BHC to Schotky diodes (not GaN) already.

    Break Break, proceeding to a slight Apples to Oranges comparison as I've been using Schotky diodes with linear power supplies so far. The way I understand it the Schotky diodes the main benefit for audio is derived from the faster switching speed when compared with other diodes. What I mean is the diode turning off to prevent reverse voltage/current when the alternating current alternates at 50 to 60hz (coincidentally in the audible spectrum of 20Hz to 20Khz aka bad). Thus with Schotky Diodes less mains noise is introduced to be filtered by your power supply caps etc.

    I haven't dived in to the world of voltage regulators beyond using exactly what the specs call for... for example in the Vali Mini coaster.

    If anyone wants to expound I'm all ears as this is just my plain English understanding.

    I'd be interested to see someone post a linear vs a non linear (switching) power supply schematics for 120VAC to 5V DC at 2A bonus if it includes the BOMs.

    Edit: to be clear I've looked at the difference between linear and non-linear power supply schematics but I've yet to fully grok the difference to the point of being able to build my own custom linear power supply for use with Pi DAPs. I have figured out that heat is a serious constraint for the 120VAC to 5VDC at 2A coming from the voltage regulators.
    Last edited: Jan 31, 2019
    the finisher likes this.
  3. jimmers
    If you take the voltage down to Low Voltage via a 120V to 6V transformer, for example, bridge rectify and smoothing caps for DC to a Low Drop Out 2A regulator, like a KA278R05C for example, heat from the reg would only be in the region of 4 Watts @ 2A but would allow for a DC supply sag down to 5.5V (mains fluctuation etc.) whiile maintaining 5V reg output
    just an idea ...
    Last edited: Jan 31, 2019
    sam6550a and CAPT Deadpool like this.
  4. CAPT Deadpool
    So like a http://www.antekinc.com/an-0206-25va-6v-transformer/ would work nicely then and build two 5V outputs for the pi and any aux power requirement.
    jimmers likes this.
  5. Xcalibur255
    The next generation of Class D amps are likely to adopt this for their powersupply implementations en masse. We're seeing the beginning of it already.
  6. inmytaxi
    Holding out for the blue flouroscan indicators to match my Pioneer amplifier.
    US Blues likes this.
  7. KoshNaranek
    While I agree that the two orders of magnitude increase in switching frequency is nice for power supplies for electronics and LED lighting, I don't think that Schiit is going to use it in a Class D amp.

    Mike has a five decade history of taking scientific and military grade parts and repurposing it for audio.

    GaAs chips have been in use for decades in the Military space and there is more experience with their properties and durability. In addition, they offer a FIVE ORDERS of magnitude increase in switching frequency. This is going to be too tempting for Mike and Jason.
    barondla likes this.
  8. wink
    upload_2019-2-1_10-50-59.jpeg ..[​IMG]..[​IMG]..[​IMG]..
    ScubaMan2017 likes this.
  9. drhoooon
    No Aegir in January, huh.. sad face:triportsad:
  10. Jason Stoddard
    Nope, still a couple of weeks out. If I can have a couple for the first Schiitrmeet, I'll have them. But that's still a question mark.

    What I should be able to guarantee at the Schiitrmeet, however, is a first article Sol--this is the real deal, from the actual castings, using actual production parts. It might not have a painted plinth, but other than that, it should be very very very close to what we'll be shipping soon. It'll even have the working real-time VTA adjust.
    Last edited: Jan 31, 2019
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  11. bosiemoncrieff
    6pm?! On a Friday!?!?!?

    Public transit really will be faster...
    yonson likes this.
  12. jimmers
    Yeah, bridge and caps to suit and mount the two KA278R05C on separate isolated () heatsinks (so you can use your fancy conductive CPU heatsink compound), heatsinks around 6K/V each - only a buck or two a piece
    Last edited: Feb 1, 2019
    sam6550a and CAPT Deadpool like this.
  13. ScubaMan2017
    ...Happy Friday, Schiit-Brothers-And-Sisters....

    As a citizen in the centre of Canada's universe, I'm just used to having no choice; I'm old enough to remember Cablevision (TM, right?). Well, HTG made an interesting comparison between THAT and the current aural-darling, Streaming.


    I buy into the current paradigm: iTunes (where I'm buying the 'right to play it'... yeesh, I hope Apple never releases a 'kill command' of some kind to their ALAC or AAC files [insert my paranoid, Aluminium-foil-hat-here]). I use Google Play as a music locker (and accept that Google compresses my music files to XXXKbps whatever-their-codex-is).

    I understand streaming's here to stay. I wonder if digital files will ever be able to be sold-and-bought? Can a file be given a unique identifier... that's more elegant than DRM? My disc collection's not going anywhere. I just can't shake the notion of owning a physical copy of SOMETHING. And library discs? Well, that's a possible stopgap (EAC is my friend, eh). What a strange time to be alive! :ksc75smile:

    Still waiting for my flying car,
  14. CAPT Deadpool

    I wouldn't worry about Apple doing anything of the sort, I don't (bad for the brand). I think your ALAC files are safe as Apple doesn't sell ALAC files. The stuff sold on iTunes are all AAC (aka MP3ish Schiit). Off line backup should be sufficient to defeat any risk of a kill command.

    I'm currently using Qobuz to stream stuff I already own on CD (and ripped to ALAC) at work. It is just not feasible for me to bring any of my music to work.

    So are you saying when I buy files from HDTracks or Qobuz I don't own them and only have a license to use them?

    ScubaMan2017 and the finisher like this.
  15. White Noise
    I could be wrong, but I believe it's already legal/a protected right to sell/trade digital copies of videogames in the EU from consumer to consumer, at least on PCs. So Steam libraries, EA Origin, GOG titles, and now Epic's Games Store, among others, would all be covered if I understand correctly. I don't know if this expands to console titles as well, but if it doesn't, I only wonder how long until it does, and how much longer until we begin seeing similar laws in the US. I could be wrong, it could just be something they were considering a few years back, but I feel like I remember it actually happening.
    ScubaMan2017 and CAPT Deadpool like this.

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