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About JohnSwenson

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  1. By max do you mean short term? If yes what time frame are you interested in? By power consumption do you mean the power drawn through the AC line cable, or the amount of heat dissipated in the heat sinks? These can be quite different. The output voltage dramatically affects these numbers, so is there a specific voltage you are interested in? John S.
  2. There is a device designed specifically for this situation, it is called a "travel router". It is designed for people that travel to different hotels a lot. The device connects to the external wifi, and uses that as input to a router, the LAN side has an Ethernet jack AND a new WiFi access point on the same subnet. With this you can use WiFi to connect to the external Wifi, but have your own internal network on both the Ethernet jack AND WiFi (different WiFi name than the external one). Thus the PC and microRendu go on the Ethernet and you can phones, laptops etc on YOUR new Wifi s
  3. First off try and check this with something other than an audio device. Try putting a computer on the B side and see if it has the same issue. Next try rebooting your router. This sounds like it could be an issue with DHCP leases. A lot of routers get slower and slower responding to lease requests and the small amount of latency of the ER can push things over the edge. John S.
  4. I'm confused about the "upper" EtherRegen connections in the diagram. The ER has two "sides", the A and B, the moat is in between them. The optical connection is on the A side and the clock is on the B side. The power connection is on the A side. You show three "signal" connections, what ports are you connecting these to? The optical port is on the A side, the best connections should be the nucleus on the A side as well and the DSM on the B side. I hope this is how you have things connected. The clock connection is on the B side, the best use of it is with the B side jack going to the DSM.
  5. Huh? The filters are designed to produce a sine wave from a square wave not the other way around. These filters are at the source of the signal. The external filter is to be used AT THE RECEIVER. The reason for this is that the input circuit is very sensitive to AM noise on the sine wave. Putting the filter at the receiver attenuates noise picked up by the cable as well as noise in the source. Of course the external filters mentioned have quite a bit steeper attenuation curve which also helps. John S.
  6. Remember the clock input is on the B side, the power input is on the A side. So powering a clock and a device on the A side from the same supply shorts the moat. Unless what you are powering on the A side uses fiber to get to the ER. So powering the ER and the Nucleus from the same supply shorts the moat. Powering the nucleus and the clock from the same supply is fine since they are both on the B side. Powering the ER and the OM from the same supply is fine, they are both on the A side AND there is optical between them. To make this a little more obvious in your pictur
  7. Since the POWER does not depend on voltage, the CURRENT goes down as the voltage goes up. Getting a supply that can supply all the current needed seems to be far more problematic than getting the higher voltage, so we generally recommend using a higher voltage if you have it available. Not because it is "better" but because you will have a much higher probability your supply will have enough current. John S.
  8. This is a tough one. The AP measures two things that may be useful for this: spectrum of audio signal coming out of DAC and jitter of S/PDIF type signals (if the analyzer has the module for that). As the designer of the ER I know what it is trying to do and this results in decreasing jitter signals going into a DAC to levels much less than 1ns. So in order to measure the results of this takes measuring equipment that has clock jitter LESS than what we are trying to achieve. I don't think the AP has clocks that good. I have recently acquired a new piece of test equipment which can m
  9. Unfortunately "it depends". There are two things that can happen from using a Y cable: 1): ground connection, leakage currents can pass through between parts of the system through the Y cable. 2): one device may "pollute" the output which can negatively effect the other device. #1 has been talked about at length so I won't go over it here. #2 depends a lot on the devices fed from the Y cable. Some devices have a very "constant" load which won't cause noise on the DC cable such as most clocks. OTOH things such as "streamers" (tiny computers) have massively chan
  10. I presume you are talking about S/PDIF, a low pass filter is not good for this since it is a square wave with complicated frequency components going up quite high. The low pass filter would destroy the signal. That filter you link to on the other hand IS a useful device. Since leakage current is primarily low frequency, a HIGH PASS filter attenuates the leakage current while letting the signal you want (S/PDIF) go through. It probably has a significant attenuation for low impedance leakage, but probably not effective for high impedance leakage. So for most systems it is probably us
  11. Not necessarily, what it really means is that every system is going to be different and there is no way to make "general rules" that work in all systems. I think this level of tweaking things scares a lot of people into thinking that unless they do this they are going to have crap sound, this is NOT true. This is all about wringing the last bit of performance out of your system, which is going to be different for everybody. At this level (where you have a very good system and you are trying to get that "scary realism" there are several sources that can impede the perfor
  12. I'm not quite sure what you are getting with this. Leakage currents are electrical signals, thus they propagate through conductors at close to the speed of light. There ARE several things that can take days to change are oxidation levels on connectors and static buildup. All the "isolation" being done to help block leakage currents can also leave a system susceptible to static charges developing between segments of a system which might change how things sound. These can build up over time. John S.
  13. More than likely running both clocks off the same JS-2 will defeat the moat of the second ER. Whether that is a problem depends a lot on how things are hooked up. The primary purpose of the moat is to prevent leakage current (both low and high impedance) from the network from getting into the DAC. If the path from the first ER to the output of the second does not introduce any new leakage currents then the moat of the first ER may be sufficient. This really needs a detailed drawing of the system to figure that out. John S.
  14. The two outputs of the JS-2 share the same ground. So if you have two ERs in series, each plugged into its own JS-2 output, you ARE defeating the moat. John S.
  15. The first thing that comes to mind is to see if there is a delay in the Farad when turning on. You can test this by looking at the power light on the ER. Try this with both the original supply and the Farad. If there is a visible delay with the Farad then this MAY be part of the problem. Another thing to test unplug what is connected to the ER, power on the ER, wait 20 seconds or so, then power up the rest. If this does not work it is most likely the your suggestion that the Farad does not have enough juice to properly power up the ER. If it does work this is leaning more towards E
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