Superdad

@Iving surely does not live in Idaho; In fact I think he lives in Europe, so odds are slim that he will get the American references (to the terrific Gus Van Sant film, to the City of Night book it was based on, or to the B-52's song). But I did...

Where please?

No way. Probably not going to happen.

Darn, I was too slow!🤣

Not sure why you would want to have one of those capacitor banks between your battery supply (with 200mA LT3042 and pass transistor to make it a 2A supply) and your FMC. Compared to a LT3042 (though real world effect of the output transistor LHY uses is unknown), the Unisonic UZ1085 3A voltage regulator at the output of those supercap boxes has horrible PSRR and 15,000 times more noise. Not to mention that the output impedance is probably very high. Just sayin'...

Life happened. Plus I was slow in doing the chassis CAD work (my longtime industrial designer/architect friend who usually does this stuff for us had health issues and needed to bow out). And we decided to give the JS-4 a ton of longterm torture testing. It is a sophisticated and costly design and we want to be 100% confident of reliability. CAD work is now done. Laying out all the back panel letting for silkscreen this week. Then a couple months wait for chassis production once we submit all the CAD milling and silkscreen artwork files. All other parts are here. Yes, JS-4 uses the 4-pole Neutrik SpeakON jacks, so NL4FX (as well as other 4-pole SpeakON models) are compatible. 4-pole is most convenient for building star-quad DC cables; Plus, if you look you'll see that Neutrik has been phasing out their 2-pole SpeakON parts--it's mostly all 4-pole and 8-pole now.

Yes, that will be the input voltage range for EtherREGEN Gen2. We expect the current draw to be about the same as it for the original model (approx. 9~10 watts regardless of input voltage).

FYI: Spoke to him and problem is solved. (Likely just an issue with the network feed cable into the 'A' side.) He is happily playing music now.

If you do not get an amber LED flashing at above-right of the 'A' side EtherREGEN port you have your router fed into (amber for Gigabit or green at top-left LED for 100Mbps), then the EtherREGEN is not receiving a good network feed to pass to your Grimm on the 'B' side. So please focus on getting that upstream side working. Be sure that the Clock switch was set to INT prior to applying power to the EtherREGEN. We also received your direct inquiry and I'll phone you in a little while. --Alex C.

Please understand that a direct attach cable is simply two 100-Ohm shielded twin axial cables terminated to a nearly bare PCB which is fitted into an SFP shell. Other than whatever maximum data rate bandwidth it is tested and certified to—and of course the gear it is connected to—there is nothing about such DACs that dictates or limits connection speed. So yes, a “25G” cable can pass 1G just fine.

Received the following e-mail from a new REF10 Nano owner this morning. And he does own a popular clock from another firm. (Reprinted with his permission.)

There are not any optical fiber elements contained in the type of RJ45 SFP transceiver module you linked to. Those simply take the 1000Base-X (fiber mode) SGMII differential pairs—at the back of the SFP cage coming from the switch chip—and run them through a PHY chip to produce the UTP for the transformers and RJ45 jack. But since the signal from the cage does not include a clock and all PHYs require one, those modules also have to have a 25MHz clock—as well as multiple voltage regulators to take the 3.3V feed and supply other voltages to the PHY and clock (usually just a cheap crystal). It is all far from ideal to have all that stuff crammed into an SFP form factor. And while Finisar is a quality brand, there are still a lot of compromises to build at low cost.

FYI: UpTone is now stocking the technically excellent MUTEC Prime Select Cables (PSC) which are optimized for square wave clocks. We have them in both 75-Ohm and 50-Ohm versions--present stock just in the 0.75 meter length, we can quickly bring in any of their other longer (1.0m, 1.5m, 2.0m) or shorter (0.5m) upon request. $155 for the 75-Ohm, $205 for the 50-Ohm. https://uptoneaudio.com/products/mutec-psc-clock-cable-bnc Please don't ask me how they compare sonically to the various crazy-expensive voodoo cables many of you are playing with. I have no idea what you will hear but I do know that these are properly engineered and precision fabricated cables for reference clock usage.

We have never required coded modules.

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