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Craig Sawyers

High Rollers
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Craig Sawyers last won the day on January 21

Craig Sawyers had the most liked content!

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1,762 Excellent

About Craig Sawyers

  • Rank
    High Roller
  • Birthday 03/02/1956

Profile Information

  • Gender
  • Location
    Oxford UK


  • Location
    Oxford UK
  • Interests
  • Occupation
    www.tech-enterprise.com , LinkedIn profile
  • Hobbies
    Copious squared
  • Headphones
    Stax Lamdas, SR007Mk2 DT990, K701, Etymotic FR4P, Old Koss ESP9
  • Headphone Amps
    KG Triode, Dyna-something, KG BH, T2 clone completed and sounding stunning
  • Sources
    Tent Labs, Meridian and Cambridge Audio CD, Garrard 401/SMEIV/Zu DL103, Logitech Transporter, Tortuga Audio LDR passive pre
  • Other Audio Gear
    Linkwitz LX521 speakers

Recent Profile Visitors

3,825 profile views
  1. Happy birthday, Steve (swt61)!!!

    Happy birthday Steve! Have a truly great day.
  2. Technical Assistance/Advice Thread

    Iron the Terrible - wasn't he a medieval Tsar
  3. The Knuckledragger 3rd Memorial Slow Forum Post

    That is one of the most disturbing things I have seen
  4. Happy Birthday Thrice!

    Happy birthday!
  5. The analog thread.

    Oh - OK. Geddit. I was thinking about how you could possibly know that I know Paul Messenger and Martin Colloms, or that I was CTO of Wharfedale in the early 90's. I clearly overthought your comment
  6. The analog thread.

  7. Happy birthday VPI!

    And another belated Happy Birthday! Hope you had a great one.
  8. What Are You Building Today

    The solder tab on the body connects through to the cable connector shell. Unless the body of the connector is connected to chassis that gains you nothing. You need to connect pin 1 to chassis as directly as possible. Reducing the loop area is the aim of the game. To do individual grounds at each XLR you have to clean the paint or anodizing off around the fixing screws so the solder tabs at that point are shorted to chassis metal. I do that with a Dremel before I start installing hardware, so it is easy from there. It also ensures that the shell of the XLR (and hence the shell of the cable connector) is tightly grounded too.
  9. The Knuckledragger 3rd Memorial Slow Forum Post

    Is that a Moog modular?
  10. What Are You Building Today

    It is just that it can give rise to difficult to understand problems. Like a phone doing a cell search on maximum power, and suddenly zzt zzt zzt. The best papers I'f found on this are the Rane Notes http://www.rane.com/note151.html and http://www.rane.com/note110.html and http://www.rane.com/note166.html The nub of it is: connect each pin 1 to chassis ground as directly as possible in heavy gauge single strand wire - the goal being zero length. Even a very short direct connection inside the box is not ideal. Many professional amplifiers use a two terminal tagboard on the rear panel for + and - signal, and a screw terminal to the case. So pin 1 is grounded outside the case and shield current never penetrates the case. Pain in the ass for domestic gear where you want to disconnect it easily, but OK for permanently installed studio gear.
  11. The Knuckledragger 3rd Memorial Slow Forum Post

    Who's at the wheel - Elon Musk
  12. What Are You Building Today

    Looks really good! Minor point on the XLR wiring. You've got pins 1 chained together and then via a wire to chassis. And yes - pin 1 absolutely has to go to chassis, but by the shortest possible route - a separate thick wire from each pin 1 to a ground solder tag at the nearest XLR screw. With the arrangement you have, any RF intercepted by the balanced cable screens goes into a tuned radiative loop (from the dimensions, several hundred MHz) and spray it inside the chassis. And conversely any radiative interference from those class D power amps gets coupled onto the XLR cable screens.
  13. RIP some fuck or another

    Jeeze what a dreadful story. What an unholy mess up and such a sad and distressing end. RIP Jake.
  14. Amplifier porn

    Yup. My amps have Neutrik 32A Powercons on the back, then 32A cable to 30A NEMA connectors on a distribution block. Got to keep that mains impedance low
  15. The Knuckledragger 3rd Memorial Slow Forum Post

    Did Jacobson die from liver damage? Did he die from alcohol induced dementia? No. He continued working as a freelance journalist and writer after an illustrious and prize winning career in war journalism, pretty much until he died age 79 - from meningitis. But wow - did he live a classic Fleet Street life!