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About Superdad

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    Music lover; Owner, UpTone Audio

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  1. Thanks for the diagram. I still think the best set up for you will likely be with the NAA connected to the sole 'B' port, and all other connections on the 'A' side. Of course everyone is encouraged to experiment! I'll probably post the case artwork tomorrow. Last little tweaks being done. And I think the pre-production boards will finally arrive by the end of this coming week (you'll all recall that a part datasheet error caused us to have to scrap the first set of bare boards even before any parts were soldered on). Hope everyone is having a nice weekend. It is starting to get really hot up here in Mariposa!
  2. Ah, you may be right. But the transformer is ungrounded. Of course it is silly-simple to determine if the DC output -VE ("ground") is floating or grounded: Just put a continuity checker (beep mode of any multimeter) across the shell of the output and AC ground.
  3. You have me a bit confused--about the crossing the moat twice stuff. You might need to post a diagram of your system. But again, there is no "clean side" or "dirty side." There is just the moat separating the two clock/data/power domains. And ideally the DAC-attached device is alone by itself on one side or the other. But its certainly okay to put two end-point renderer devices on the 'A' ports side and feed in from the rest of your network via the 'B' port. Hope that helps.
  4. I might indeed be floated--and dangerously so. Take a look at the below photo and notice that the ground pin of the IEC AC inlet is not attached to anything (and there are just two wires going from that board to the transformer). That is illegal and unsafe (except for double-insulated products, which the sPS-1000 is not).
  5. Chris: I am curious (and I guess too lazy to search your earlier threads about your room): Did you ever setup your TAD speakers in your remodeled room? Or are the Wilsons the first speakers to play in that space? If the latter, then wow you really have a double journey ahead of you--getting used to the character of your room AND learning about optimizing the Wilsons in that space. Best of luck and much musical joy in either case.
  6. I did not do any SQ comparisons. I chose to use ports that were far apart to avoid having the two devices use ports that might be sharing a magnetics module (these are typically 2~4 port packages).
  7. I guess I missed any link that showed A. Wun as an owner of Audio Prism. I remember meeting Victor T. of Audio Prism about 17 years ago, but I never followed them since.
  8. No way will you get that giant wire into an Oyaide DC barrel plug! (Current--really small--production model is lower-left; I pay Oyaide extra every couple of years to make 1,000 pieces of the original style just so we can squeeze in our 4x18awg Belden star-quad wire.) Besides, inductance-lowering star-quad is the most important factor to making a worthwhile DC cable.
  9. From your many other posts I know you are the king of links . But other than one guy on Audiogon making mention (which could be wrong), how are you linking Byron Collet of Audio Prism to Adrian Wun? I'm not seeing that connection.
  10. Thank you for your detailed explanations Jussi! As far as NAA/networkaudiod, I am not seeing 3.5.7 on your web site--either as complete Linux image or as component. Only 3.5.6. Are you distributing differently or just not ready to release 3.5.7? Looking forward to comparing your newest HQP Embedded 4.11 Linux stick image to the AudioLinux/HQPe stick (with 4.10.2) I currently use. When I compared previously your 4.10.2 image to my AL version, the AL version definitely had better SQ. Don't ask me why, but it was apparent.
  11. First: Congratulations on your successful installation of our popular Mac mini DC-conversion/Linear Fan Controller Kit (MMK)! You should have received an addendum e-mail from us which contained--among other pre-install hints--information and links for testing operation of the fan (still under automatic control of the operating system and Mac mini thermal sensors). Here is the relevances excerpt from that e-mail: Upon first power up after you complete the installation of the MMK (or maybe before you even start), please download the free fan speed/temperature utility called "Macs Fan Control” from http://www.crystalidea.com/macs-fan-control and launch it to be sure that your Mac mini fan is running. It should report at least 1800 rpm, and if you double-click on the highlighted Exhaust fan you can then select "Constant RPM value" and run it up to a high speed to listen and confirm fan control (you have to click OKAY to have the speed change take effect, and be sure to set it back to automatic afterwards so the computer and OS X will adjust the fan as needed).Alternatively, you can leave the cover off during first power-up after MMK installation and use a flashlight to confirm the fan is running (it is all black in there so it can be hard to tell). If for some reason the fan is not running, then please shut down your Mac mini and recheck all connections.Another popular free utility for fan control and temperature reporting is smcFanControl from http://www.eidac.de. That is what I had been using, but I am recommending "Macs Fan Control" because it reports the fan speed the moment you launch it. Please let us know if you need any further assistance. We are always here to help. Enjoy your upgraded Mac mini. And if you did not purchase it with our acclaimed JS-2 choke-filtered, dual-output, 5~7.4 amp linear power supply, perhaps you will consider upgrading to one in the future. Thanks and regards, --Alex C.
  12. Sure, a mini-spade is fine. The thumb-screws I am ordering have a typical flange. It is a 6-32 size screw, so plenty small enough for a small spade. Just a reminder to others reading: Use of the ground screw is recommended only if whatever power supply you are using is “floated”—i.e. its DC output cable’s -VE (“ground”) is not actually common to AC mains ground. An example of such being our own UltraCap LPS-1.2. But the UpTone-branded SMPS that will ship with every EtherREGEN (same custom unit as what we ship as charger for LPS-1.2) is internally ground-shunted. So when powering EtherREGEN with this stock supply it is not at all necessary to use the ground screw terminal.
  13. Are you referring to HQ Player Embedded? And are these improvements only for those running your Linux package? I am running HQPe under AudioLinux (more control over certain OS things and @lmitche is my Linux guru making it all work for me with network shares; BTW, I will be paying for my HQPe license soon). Can you tell us more detail about what these connection handling improvements are? Also, I know you use Ethernet pause-packets/flow-control with NAA. But seems like you only do so for Gigabit connections. Is that correct? And are pause-packets/flow-control used with all NAA platforms? I know for Linux, but are Windows and macOS NAA the same? Thanks very much, --Alex C.
  14. That does not sound like fun to me!
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