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Computer Audiophile


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About austinpop

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    In Audio Veritas

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    Austin, TX

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  1. Congrats! I'm very glad you are happy with the SQ gains you are hearing!
  2. Don't stress. Trust your own ears. At least with the SOtM-modded switch, its incremental cost in your clock chain is relatively modest, so even if you hear no improvement, you're not out a lot of money.
  3. Let's use this thread to get a census of CA'ers attending AXPONA this year. I'll be there from Friday early afternoon through Sunday. I really enjoyed the CA happy hour at RMAF last year, and would propose we do the same at AXPONA, but maybe longer, as I felt an hour wasn't really enough time. My preference would be Friday or Saturday. Holler if you're going, and if you'd be up for a happy hour/meetup.
  4. Wow, that is quite a project! I look forward to your findings.
  5. Also one observation regarding the LPS-1.2. I've noticed that any time I change voltage via the rotary on the back panel, it is easy to get in a mode where the LED stays RED. This happens either if you make the voltage change: while the unit is on. LED will go red, and never cycle to green while the unit is off via the push buttion, but energizing supply is still connected. Same thing - LED stays red on restart with the button. when the energizing supply has been disconnected, the LED has gone dark, but only a very short time has transpired. Again - perpetual red LED. The only way I can reliably get it to work after a voltage change is to: physically disconnect the energizer supply wait 30 seconds or so plug back in and turn on. This works 100% of the time. Just a weird quirk, but it did worry me initially.
  6. Yikes. That's what I feared. And same deal with the HDPlex 100 (the old one) - correct? As I recall, you said it can cause overvoltage spikes that will damage the LPS-1.2? Is this a danger even if I use the 9V rail?
  7. @Superdad Can I use an el cheapo Chinese LPS rated at 9v/30w to energize the LPS-1.2? It’s this one: High-end 30W DC9V HiFi Linear power supply Regulated PSU for DAC headphone amp https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F111706391166
  8. I managed to catch Roy before he headed off for another extended trip, where he will be out of pocket. He confirmed that in his post about the "much longer clock cables," he was also referring to the internal reference clock cable. Here is the post: https://www.computeraudiophile.com/forums/topic/30376-a-novel-way-to-massively-improve-the-sq-of-computer-audio-streaming/?do=findComment&comment=722848 To quote him (emphasis mine): This is why I had to send my gear back to SOtM. Because they didn't have the really short clock cables in stock, they ended up using much longer clock cables in my build which I ultimately deemed as unacceptable. He did say that were he to do it over, he would just source a shorter cable and DIY, since the U.FL connectors are snap on, snap off, and easy to swap. Well, even though it doesn't involve soldering, I feel a lot of trepidation trying this. So for this exercise, I would ask the more handy, adventurous of you to try the shorter cable, and please report any perceived SQ improvement here. <sits back and sips his beverage >
  9. Steven was great to deal with. The correct link is http://audiosensibility.com/blog/sotm-audio/#!/Signature-Silver-DC-Cable/p/102469015 Make sure to email him first. @mozes must be a celebrity, since Steven also emailed me a generous discount code, after I name dropped I was a friend.
  10. Heh! Somehow I don't buy the shrinking violet defense - not here on CA.
  11. I was up very late last night, because I just couldn't stop listening to the Ref 10 in my system. The musicality is just crazy, and despite my incessant urge to test things, I just kicked back and enjoyed the music. Well - I couldn't resist one test, which was to use the knob on the Ref 10 to enable/disable the clock. Regarding your observation, @Confused, I can certainly understand. One thing I have found is that some tracks are way better than others to discern the effect. And it does take a few seconds for the brain to register. I find it better to repeat a snippet every time you make the change, rather than do it while letting a track continue on. Here are some tracks where I found the clock effect to be massive, as in "hit you on the head": The Game of Love, Daft Punk Y tú qué has hecho - Buena Vista Social Club Take Five - Dave Brubeck Mahler Symphony 5, Rondo - Finale - Osmo Vänskä, Minnesota Orchestra Mahler Symphony 1, 4th movement - Ivan Fischer, Budapest And regarding the MC-3+ USB, see my response to @zoltan. I'm sure DAC synergy plays a role too. I will say that while I don't know how good the MC-3+ USB's native clock is, the sCLK-EX in and of itself is no slouch, and is what propelled @romaz's and my exploration lo these 100s of pages ago!
  12. I would love to hear other voices reviewing the SR-4. Did I miss it, or am I the only one who has had anything to say about it? Come on, people!
  13. Since you guys have actually opened up your units and had a closer look at the board and U.FL connector... Do you know, or can you see, where and how the termination is implemented? Remember, the master clock input is either 50 or 75 Ω terminated, depending on how you ordered it. I just wonder whether you have to take this termination into account when considering alternative internal cables. I'll have to take your word for it, as I have not ever heard an MC-3+ USB. I suspect the DAC has a lot to do with it too. My DAC is pretty much designed for USB input, so the tX-USBultra synergizes really well with it.
  14. Yup, that about sums it up. No idea what the right answer is! Thsnks for the tip about the glue. I do want to proceed so I can get at the voltage jumpers.