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  1. J

    Spectral DMC-30 SV

    Mr.ack Thank you for your opinion best regards Joao
  2. J

    Spectral DMC-30 SV

    Dear Sirs A question, in the model DMC-30SS of Spectral, which of the inputs this preamplifier has better performance, input XRL or RCA? Best Regards Joao
  3. J

    ... phono stage

    jon
  4. J

    project... power amplifier

    Hi, after a long period of development, finally the element to the power amplifier. The preamplifier, 100% discreet and with a bandwidth DC to 1.2 MHz,-3dB. Careful attention was paid on the circuit board and the choice of components for this to be possible, especially semiconductors and...
  5. J

    project... power amplifier

    HI flex007 thank you
  6. J

    email of spectral audio

    I already resolved this issue, thanks for your help joao
  7. J

    email of spectral audio

    HI Gary I live in Portugal, I tried and I can not make the call, I have no fax. if anyone can help can email private thank´s
  8. J

    email of spectral audio

    hello people, I need your help, anyone know the contact email address of the spectral audio? I need to send an email with urgency. The site does not inform on the contact email address. thanks for your help jon
  9. J

    ... phono stage

    last pictures (HQ).... front1 front2 rear "cumprimentos" jon
  10. J

    ... phono stage

    thanks mep
  11. J

    ... phono stage

    but .... continuing Here is the box for the transformer (power supply), is Affixed to the top and bottom surface are closed-cell neoprene damping sheets and mu-metal. the mu-metal is excellent to isolation of magnetic fields. preparing transformer assembly screen printing ..... Mounting...
  12. J

    ... phono stage

    Good question .... Steve I'm in a country that does not value what people do. is a hard way to go. If I were in germany, england, or even in the United States would be different. I'll do the best possible for that to happen. Only time will tell.
  13. J

    ... phono stage

    Here is the motherboard. The line of power supply is based on copper UP-OCC an optimal material to be a ideal transmission line. For the time being, UP-OCC pure copper has been considered the state-of-the-art conductor material in Hi- E nd Audio cable industry. assembling the first...
  14. J

    ... phono stage

    hi jfrech thanks
  15. J

    ... phono stage

    Hi the first photos (developing the boards in Altium Designer. excellent, sophisticated and with a margin of error "null". The best that has passed through my hands). Board´s (power supply, mother board...) The boards (phono stage) preparing the chassis the elements made, ??to...
  16. J

    ... phono stage

    Dear Sirs Since kid, always had a passion for vinyl. The pleasure of listening to music is something magical. I decided to design a project for my simple (denon 103R). phono stage. Follows the same philosophy of the power amplifier (thread 04-10-2013, "project... power amplifier "). The...
  17. J

    B&W 800D DIY Speakers - you've got to see this!

    I saw this thread now, excellent work jon
  18. J

    hello from Lisbon

    this is the true reality
  19. J

    DIY stereo stand

    I saw this job now, is simply superb.
  20. J

    project... power amplifier

    like this;)
  21. J

    project... power amplifier

    now I understood your question. much .... much money, and when it comes to a prototype is more expensive development. could go more ahead, but it is not easy for those who are alone in this project without financial support from anyone.
  22. J

    project... power amplifier

    last pictures (HQ).... and thanks bank capacitor nichicon gold tune front 1 front 2 rear link HQ pictures: front rear jon
  23. J

    project... power amplifier

    Attached more pictures Damping of transformer Rear panel side A-B power, system control top panel front panel1 rear best regards jon
  24. J

    project... power amplifier

    I do not understand your question! my english is a little ..."ruim"
  25. J

    project... power amplifier

    continuation ... The 1000VA transformer "power supply" is modified (fixation) with this resin. mounting board of the voltage amplifier (one channel) output power transistor and power supply for voltage amplifier. It is possible to see one of the channels already mounted...
  26. J

    project... power amplifier

    The project is 100% mine. I was technical maintenance of broadcast video, but the audio has always been my passion. Then I launch this project in prototype jon
  27. J

    project... power amplifier

    thanks JackD201 Here in Portugal resources are few, but I'll try to do my best jon
  28. J

    hello from Lisbon

    Hi Tom I project the boards and then send to a company here in Portugal, is the only company that does in my specifications. jon

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