justubes

Thanks Clockmeister, takes a fair bit to digest. "you are referring to the individual sample rates such as 44.1-768Khz such as dcs et al, then usually the SE-120 or similar is used to slave the companies proprietary word clock device" I was wondering as opposed to a DDS Synthesized frequencies. If the master 10M's phase noise was 120db. The proprietary wordclock 100db. How would one rate in order of overall importance /phase noise if A)10M clock at 120db slaving a word clock of 100db phase noise B)10M clock at 115db slaving a word clock of 105db How would these compare. In short, which clock would be of greater significance ? 10M or proprietary word clock in your experience? Thanks for your comprehensive insight.

Hi John, Thanks for your questions. I believe some dacs have external 10m inputs to help or prove the performancenof the clock inbuilt, dual frequency pairs of say 22/24mhz or 45/49mhz to cover these frequencies for digital sample rates. Would these also have a sythesizer, in which if externally clocked would not need a sythesizer since there are a pair of clocks and would tjen not require a synthesizer because there are the 2 audio clocks already. Or will it make these internal 22/24 or 45/49 clocks redundant?

I am trying to find out if a Mutec reference se120 clock used as a master and reference for a 22/24 or 45/49 mhz pair internal clocks (likewise for a 25mhz clock). How much will it matter to use the best/lowest phase noise pair internal clocks in this instance. Which would be a a priority for upgrade for best results or of more importance.

Has anyone got a reply from Paul on outstanding recently? I received my pr3 psu modules after 2 years sometime last year, but cannot complete my psu build - double regulated setup due to some strange power issues and was to receive his newly designed double regulator with less voltage drop for improved heat management which solves issues some customers had with overheating double regs which would short out. I did not want to risk expensive equipment. Sadly, it will be 3 years in August and a project that may not come to light. With covid/ war now in Europe, things do not look good. Hope he is doing fine. Hope to hear some feedback and keep my fingers crossed.!

There is no details if this does bit perfect D2D reclocking? Something similar to a Mutec Mc3.1 usb.

Thanks Ari for your info. My dealer had a new replacement usb recovery stick sent by Aurender as the original one was dead, but still seems unable to restore the ssds OS (but working ssd). Just powering to show Aurender logo on the lcd. Just to gain a better understanding, does the recovery usb restore the ssd partially by looking for the the last working boot or does it / or can it reinstall the whole ssd OS. Also , in cases where the ssd does stop working, can the recovery work via just the usb recovery stick to boot it so that at least if the OS cannot be reinstalled, the unit can still boot so that Aurender support can remotely access and diagnose, reinstall or fix the os? How would the OS be best reinstalled? Should the old ssd ever die and a new blank one replaced. What would be the procedure to get things up and running? With the current Covid situation badly affecting the whole world, service seems to be very limited or even halted for some time as many business operations have not been allowed to operate as per normal due to governmental restrictions imposed to only allow essential services currently. Is having backups possible. Thanks

Hi, does anyone have experienced a ssd failure/corruption and how it was fixed. If unit does not go into boot. Usb recovery thumbdrive was not functioning. How to resolve since it cannot boot and obtain Aurender support help from the menu?

Hi Ari Does it not cache to the RAM? If it is the cached to the SSD, if i disconnect the network, will we be able to play the list songs (say 100 tracks) selected to be played since it is on the ssd by starting the 1st song and let it continue without network connected to the Aurender?

Agree, but it is next to impossible to test it that way with the many different dacs. But in any case take it that any improvement in the phase noise of an external reference will result in the same improvement at the dac. What happens after the output of the reference master clock will require your own testing to determine if it was worthwhile. There will always certainly have losses. Maybe better PLL, FPGA etc that will be available in the future that has negligible losses

What i meant is that using another unused bnc is not griunded directly with the next bnc output which the cable is connected to. Each bnc is isolated from each other. So meanimg not a true or best ground...

How do you ground the Ref10? Have you tried chassis ground, from what i hve checked, the grounds of each output of the Ref10 checks to be isolated from my tests with a meter.

Hi, Does not look right. 2nd column should also have the 2nd row, 10M also lighted. That is, if you have the ref10 connected to both units. 10M has not been selected. Let us know how it goes.

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Isquirell, How does USB connection in your comparisons with AES you were using previously with your Select and the clock connection? Any particular usb cable you demoed with? By any chance did you compare Tidal/Qobuz streaming quality? It would be expected that the especially high resolution music played from internal pcie drives would be superior. Thanks

What the utilization without a playlist. I would have though Tidal stores only 1 track on the ram at a time.