Recent content by jezz
  1. jezz

    Dirt Cheap Stax Amp DIY - new schematic updated!

    "Son of Zen" is a different amp than Zen (article here). Pass calls it "balanced single-ended."
  2. jezz

    Dirt Cheap Stax Amp DIY - new schematic updated!

    Nice design; it reminds me of the Son of Zen. If you haven't already, you could improve distortion a bit by matching the output transistors for hFE.
  3. jezz is giving away a pair of Creative Aurvana Lives: Tell us about the best live show you've ever seen

    My best was Mutemath at the Middle East Downstairs in Cambridge, MA. They are a truly fantastic band to see live; the drummer, Darren King, duct-tapes his monitor headphones to his head because he moves around so much, and the lead singer, Paul Meany, treats stages like a kid treats a jungle...
  4. jezz

    Design Consult on Headphones

    Quote: I'll defer you to the prevailing wisdom on answering hard questions about magnets.
  5. jezz

    [WIP] Custom Headphones Design (with new pics !!)

    I've been looking at Shapeways because they can (allegedly) get 0.1mm tolerances with some materials. I also don't have access to any FDM prototyping facilities. I wouldn't trust either with creating threads though; I've been leaving spaces to add nuts flush with the parts to work around that...
  6. jezz

    Job for Web Designers/Developers: Help with the HeadAmp website

    Things I never thought I'd say in the Sponsor Annoucements forum:   ygpm
  7. jezz

    This wire for headphones

    Yes, the wire could be bad and it might not have connection from one end of the wire to another. In that case, with a multimeter, you could ask the seller for a refund. You wanted wire and assumed it could conduct electricity.   It could just as well be that you melted a driver or wired the...
  8. jezz

    New chassis from Hammond

    The ones previously discussed are a bit different; those are mostly hardwood with an aluminum top panel, and are as such pretty pricey. These look pretty reasonable at digikey; $60-$100 or so without a bottom panel (at least, the aluminum ones; the steel ones don't seem to be widely distributed...
  9. AKG K340 Electrostatic-Dynamic Headphones

    AKG K340 Electrostatic-Dynamic Headphones

    A discontinued electrostatic-dynamic hybrid headphone with an electret transducer for frequencies above 4kHz and a moving coil transducer for frequencies below 4kHz. The headphones employ passive diaphragms similar to those in the AKG K240 Sextetts. The nominal impedance for each channel is 400...
  10. jezz

    Wich DIY project build...

    Just to add to the list, I don't know if this meets your requirements but tomb offers a nifty MiniMAX kit. The HeadWize thread is always worth a read as well, albeit now 3 years out of date. Edit: Quote: Originally Posted by dorkvader <snip>If I recall correctly, most other...
  11. jezz

    PPA v2 construction discussion

    Quote: Originally Posted by Spacehead I am glad that you got your amplifier working! BTW Pretty soon I got my PPA v2 working my ears fatigued pretty badly. Don't listen too long periods now, or you might get that pain too Thanks! I've never found the sound from the PPAv2...
  12. jezz

    REVIEW: JMoney Audio Genuine Leather earpads for Beyer DT770/880/990

    Quote: Originally Posted by Spork Any word on the new model yet? I'm curious too; I've been waiting to pick up a pair but have wanted to see a photo of them first.
  13. jezz

    Best places for DIY cable supplies?

    If you're looking for silver plated copper with teflon insulation, I tend to go with John/navships on eBay. He's always a pleasure to deal with and sells in the relatively small quantities I need.
  14. jezz

    PPA v2 construction discussion

    All times AM. 1:30, Email about subscribed thread. 1:31, Done reading, soldering iron heating up 1:32, Random resistor found, leads trimmed 1:33, Resistor in place, accidentally broke Molex 1:43, Fixed stupid mistakes from 1:33 to 1:43 while fixing Molex 1:44, Fixed Molex 1:45, Started...
  15. jezz

    PPA v2 construction discussion

    I'll check and reflow all the joints when I get the opportunity. This probably won't be the week for it though. I'll report back if I find anything. When I put it together I seem to recall checking everything fairly well. I did notice something though; with no source connected, if I quickly...