Recent content by j4cbo
  1. j4cbo

    Post pics of your builds....

    Indeed. The photo doesn't really do them justice.
  2. j4cbo

    Post pics of your builds....

    No, they're HiFi2000 Pesante Dissipante with custom milling/drilling on the front, back, and heatsinks.
  3. j4cbo

    Post pics of your builds....

    Cases in today.
  4. j4cbo

    Post pics of your builds....

    I have, in fact, done some listening. Eighteen of the boards are under construction; not pictured are the two boards that are completed and hooked up to temporary heatsinks, a σ22, and my source. It is, to put it mildly, pretty damn good. For the uninitiated: the above is a whole batch of...
  5. j4cbo

    Post pics of your builds....

    One at a time, ladies.
  6. j4cbo

    Post pics of your builds....

    Progress:
  7. j4cbo

    Dark Voice 332 Schematic

    I would suggest contacting them directly.
  8. j4cbo

    Glass Jar Audio - Do they have high quality kit parts?

    Quote: Originally Posted by MrSlim It is the most sophisticated DIY amp in existence, Not anymore
  9. j4cbo

    The M4: A fully differential, single-PCB amplifier with relay attenuator

    Quote: Originally Posted by stew1234 I know in the first post you said it is powered by a wal wart. Would there be any improvement in SQ by using a different psu like the sigma 11? No. The wall wart only provides AC; the onboard Jung regulator is likely superior to the σ11.
  10. j4cbo

    The M4: A fully differential, single-PCB amplifier with relay attenuator

    Sweet, someone who knows what they're doing more than me :P Quote: Originally Posted by jcx I hope the R37,38 are open - the Vcom inputs of the diff op amps try to split the supply V and connecting to one rail would a bad idea further the data sheet highly recommends bypass C on...
  11. j4cbo

    The M4: A fully differential, single-PCB amplifier with relay attenuator

    Yeah, once I'm confident enough in the state of the design (read: have properly benchmarked the regulator, and have had other people take a listen and say that it sounds good), I think I'll do a group buy. I also have a metric assload of the smaller surface-mount components (I got a lot of...
  12. j4cbo

    The M4: A fully differential, single-PCB amplifier with relay attenuator

    I don't have an M3, sadly... I think I'll ship a prototype out to some folks in California with lots of things to compare with and have them do a shootout.
  13. j4cbo

    The M4: A fully differential, single-PCB amplifier with relay attenuator

    Quote: Originally Posted by smeggy heh, and all for a projected price of under $300 That's what you said right? hehe Ahahahahahahahahahahahahahahahaha :P
  14. j4cbo

    The M4: A fully differential, single-PCB amplifier with relay attenuator

    Quote: Originally Posted by bada bing This looks like a very good design to integrate the differential outputs of a WM8741 DAC chip on. It seems like you could eliminate a bunch of buffering and cabling monkey motion pretty easily. I don't want to say too much too early, but... I...
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