Jump to content


  • Content Count

  • Joined

  • Last visited

Everything posted by motberg

  1. I tried a 7 A brick with the HDPlex DC-ATX and could not boot a modest mb with 25w CPU with the HDD powered separately. A10A Teradak LPS booted this computer successfully. Just another data point in case someone encounters problems.
  2. I have tried most of the ambiophonics softwares, including the miniAmbio box (also have upgraded Carver C-16, and C-9's). I have not had great success with the software, I tried a full barrier for a reference and I think very tough to beat with software. I am now using partial barriers and a Black Ice - Foz SS-X, with carefully selected tube and just a touch of the dimension control active. This results in a similar (but not as complete) effect to the full barrier, with a little 12AU7 warmth thrown into the mix. I also have a clean path to the same amp with good passive preamp, silver litz, etc..... for most my music listening the Foz path is preferable, even if not as exactingly detailed. Probably if I could afford some nice floor-to-ceiling line-source electrostatics that would provide a nice big enveloping soundstage - I would not need the Foz.. but the grandkids, etc. take budget priority for now so it is nice to have such affordable stuff like the amibio softwares and Foz to add to my small-room music enjoyment.
  3. I have an older Teradak ATX, running for about 5 years with no problems, and also the HDplex 400W ATX for over a year - no problems. I doubt if I could tell them apart in my system for sound quality. The Teradak cables are too long for my current setup and seem much more difficult to replace/upgrade (they use a large multi-contact well-made coupler). The HDPlex cables seem more standard and Ghent already offers these - so I would buy the HDPlex on that characteristic alone.
  4. Hi Peter, Has any pattern emerged yet concerning the HDMI^2 cable length vs. performance (when used for i2s transfer) ? I have not consistently used anything longer than 0.5M between DDC and DAC. I once tried 1M (same model cable) for some testing, but seemed to lose some coherence. These setups were all with WireWorld quality cables. Being able to safely stretch to 1M may be worth the investment in my case.
  5. Is there any validity to the objective to not have any switching power supplies on the same mains circuit as the audio source components ( DAC, Preamp, DDC, etc..)?
  6. it could be some household electrical device switching causing the isolation feature to cut the connection to your dac... this happened in my system...
  7. My environment is surely worse than the oft mentioned NYC apt. I just try to do best practice with what is available... to better isolate the fridge, I ran a long power cord extension to another circuit. There are no SMPS in the audio room (the 2 PC's, cooling fans, Uptone LPS-1's etc. all have LPS sources...) For specific power related devices, I have found: Standard economy power filters/distributors I have tried (around the 200 USD level) designed for audio/video have basically no audible effect for upgrading the sound, but they may help in that when using them I have had no trouble with hum, buzzes, clicks, etc.. A 500W Chinese isolation transformer used to isolate a computer monitor in the stereo room did not seem to have effect. Unplugging the monitor seems to be beneficial (but I think would not pass blind testing with my ears). Yulong P18 Power Purifier Filters (I think discontinued) have a small but appreciated audible effect when used on digital source components and preamp;, slightly smoother presentation with more separation and quiet between sound elements. I currently use one of these for my power amp as the only device connected. Audio GD HE-350 220V regenerator has a very noticeable effect when used on DDC, DAC and preamp... some years ago I would only listen at night due to a perceived grainy music presentation during the day.. the HE-350 allows me to listen during the day, pretty much equalizing the day/night sound quality. Next step for me will be to try some similar 220V regenerator(s) for my PC's ATX (LPS) supplies.
  8. AO 3.0 update went smoothly on both machines - Audio PC Server 2019 GUI, Control PC Windows 10 Pro. Amazing the SQ clarity increase and additional blackness in the background (which I think is mostly attributable to the WIN 10 Pro machine which was formerly AO 2.2). I recommend anyone that does not want to install Server (although Server GUI is almost indistinguishable from 10 in my opinion) , and wants to get the most out of a Win 10 system should give AO a try. The installation is simple, and the adjustments and options allow the user to adjust the sound presentation to the system characteristics and user preferences. I have recently tested Euphony/Stylus on the same system - I much prefer the more substantial "presence" of optimized Windows with JPlay Femto. Now off to read the AO manual... Too bad I need go on an extended business trip tomorrow, I wish I had more time to review my favorites. Like someone mentioned above it is illuminating to be able to understand the lyrics, as well as the intricate interplay between the musicians and their instruments (as well as between each other), easily without conscious effort. Even when revisiting familiar pieces, one can only be astounded by the emotion possible to be conveyed by these artists' given gifts and resolute craftsmanship.
  9. I wonder what would happen if you power the EPS with a separate LPS .... I have my audio PC setup like that - ATX 20 pin with ATX LPS, and then a separate 10A 12V LPS for the EPS (Ghent cable)
  10. I assume this is the ISORegen? I had the same problem. With ISORegen in chain, switch the lights - music computer shuts down. I gave the ISORegen to a friend. Intona Industrial and the Singxer UIP-1 both work OK in my room. https://www.shenzhenaudio.com/singxer-uip-1-isolate-processor-usb2-0-usb-interface.html I am currently using the Gustard U16 DDC and find this still benefits from the UIP-1 followed by a W4S Recovery - all powered separately by either LPS-1.2 or LPS-1's followed by LT3045 DC-DC convertor boxes. Wonderful and consistent SQ... That is great to hear Schiit is making progress with USB inputs, I have found similar results with the Audio-GD isolated Amanero USB.
  11. agree that is a good possibility - I have found a certain (fairly popular) brand of non-shielded cables in my system when using any type of tube preamp can result in an intermittent 7.5 khz squeal of about +6db.. crazy stuff.. pop in a shielded set and AOK . These were RCA also..
  12. Just my opinion, but I think that there is a substantial international market for a proper simple player/OS/remote, with HQPlayer based oversampling option (and maybe VST plug-in options for EQ, etc), available as a single software package that will run on both single and dual PC's and offering the highest level of sound quality. (I am not sure if there is any type of consensus in the industry concerning a technical benefit to the streamer/end-point configuration, but it sure seems to me that a lot of computer audiophiles would consider this is the case. )
  13. I am using 10 Pro on control PC with AO 2.2 and the attached the Audio PC uses WinServer 2019 GUI and AO latest 3.0 beta. Sounds very good, but I did not compare to Server also on control PC. AO can strip Win Pro of excess stuff and also replace the GUI... I found these AO functions changes the sound from stock WIN Pro.. One thing for sure, is the AO sound signature and digital filter settings on the control PC are obvious.. I was shocked by this as I found they are just as obvious on control PC in 2 PC setup as for when I used a single PC setup😲.
  14. I hope this will lead to a easy to configure dual-PC version of Stylus (hopefully requiring a single license though....) I have no interest in Roon, but have tested Stylus briefly and think within a dual-PC configuration, it could possibly unseat Windows Server/JPlay in my systems for ease of use as well as sound quality.
  15. OK, thanks for the suggestions and I will check my current setup for the speakers angles. Interesting you consider absolute phase an important attribute.. The Black Ice (Jolida) device includes what I think is an indicator for that but I never checked (yet..) http://www.enjoythemusic.com/magazine/equipment/0917/Jolida_Foz_SSX_Sound_Stage_Expander_Review.htm On the top surface there is a round gold colored plate. This disk holds four (blinking) amber LED's. They are arranged at quarter hour clock intervals at 12, 3, 6, 9. The 3 and 9 LED positions indicate the right and left channels activity. The 12 and 6 positions are for channel phase. The 12 o'clock LED indicates an in phase condition and the rarely illuminated LED below that at 6 o'clock is an out of phase indication.
  16. Check out the Joyo JMP-01... best sounding battery ps I have used, but watch polarity.
  17. iirc, 10 degrees per side... my miniambio is based on the old , lower res minidsp box.. and the new minidspHR version is a big step up in transparency. I use the HR for sub management ...
  18. Thanks for the Soundpimp reference. I listen mostly to studio recordings and have a complete other clean source path for a more serious audiophile type reference. I have an upgraded Carver C16 and C9, the Miniambio box, and tried all the software listed at the ambiophonics website, not much success with that stuff.. The clearest and most convincing was a full barrier, nose to 1M behind speakers, built with multiple acoustic foam and air barriers, speakers at 10 degrees, speakers are small monitors almost point source, listening distance less than 2 M, no software. The Jolida is amazingly transparent as long as you use a proper tube (I think I have a RCA clear top in there) and do not push the xtc. But if you push the expansion then things get a little blurry. I get the feeling that it is not necessary to achieve full crosstalk cancellation, as evidenced by the effect of my partial barriers. Maybe just slowing the arrival of the opposing side is sufficient to achieve a lot of the effect. Thanks again for the ideas...
  19. Is your algorithm for stereo files ? What applications will work ? Similar to you, I have tried almost everything available and would consider the basic BACCH if it would not be mac based. So far, my best results are using the Blackice (Jolida) Audio Foz SSX followed by passive vol. control with partial physical crosstalk barriers.. software solutions seem phasey, incoherent, unbalanced, etc. compared to this, but the separation effect is not as pronounced as a full barrier or ambiophonics based software.
  20. My best success with a laptop was Windows Server core, with AO optimization... But, as mentioned above, you can more simply try the OS effect with something like Euphony or Volumio... I had a ULink and I am sure that bottleneck can be improved... but you may be surprised by the difference the operating system and general software optimization can change the sound .
  21. you used the qualifier "all".. as such I disagree as it seems there is also a lot of experience and craftsmanship used in the design of audio reproduction equipment I hope that cheers up your day!
  22. I am using one of the older HDPlex DC-ATX convertors and also one of the new 400W units, also I have a 400W HDPlex ATX PS and a Teradak 210W ATX PS.. I am not sure if I would be able to tell these apart, they all sound good and much better than a generic switching ATX supply. I am using the HDPlex DC-ATX convertors for the 20 pin ATX power input only, the mb 12V input is a separate LPS. However - a friend built a DIY server/dac (something like an all in one setup but still configured in a few boxes) using a lot of LT3045's mostly double regulated to the mb, and 12V input via battery. .. We tried that in my system and I think most people would say his was substantially better. One of my setups uses the same mb (Supermicro X10SBA-L) and similar r2r dac, similar stuff but certainly not an A-B comparison. Hearing his comparatively simple device using Volumio, you get the sense that mb and dac power regulation is perhaps a key attribute to this performance.
  23. I have been using a Teradak 210W ATX LPS for about 4 years now with no problems... I think it is not a stock item anymore, but I believe they will custom make... I also have the HDPlex and to me seems a fair value... Michael Li <[email protected]>
  24. I have been using the Startech USB 3.0 with Server 2019 GUI - works perfectly https://www.startech.com/Networking-IO/usb-network-adapters/USB-3-to-Gigabit-Ethernet-NIC-Network-Adapter~USB31000NDS
  25. Wow ! Thanks so much for the details.. great info for HQPlayer setup...
  • Create New...