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enser

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  1. Anyone else using this DDC? Mods? LDOs and regulation stages look pretty solid, but I have yet to crack it open... prob will next week and post some pics. The chassis is top notch-
  2. Glad I read this thread. I'd have to say Roon native now edges out HQPlayer NAA with my setup... will try some of the tweaks you guys are discussing. Thanks for pointing this out!
  3. Have had over a month to evaluate this DDC. Works excellent with the W4S DAC2v2se with the following modes: mclk - on ; iis reverse - on (A definition) ; DoP to native - on (excellent sounding). DoP to Native is limited to DSD 256, regardless of it 'only' being 256, it sounds very very good. This is with a uRendu running in NAA mode (v2.5 Sonic Orbiter build), powered by an LPS-1 @ 7v. Using a VBUS2 in front of the USB connection. Using another LPS-1 @ 7v to power the DDC. Using a standard HDMI cable via LVDS IIS. Dont have the proper gear to measure any potential phase issues, but it sounds excellent. Have listened for any 'smearing' and the like that could point to phase problems- I'm not hearing any. No sync issues, very low noise floor (this is with my ears) and it sounds like it adds clarity and further definition to the music. I will be making my own HDMI cable with a pin 1/3 or 7/9 swap (depending on the IIS 'definition' setting of choice) to see if there is any difference. Playback is without pops or any artifacts through the DDC, and as stated before, it stays in sync. Have ran it for a few days straight and the above status remains. This is not the case going straight USB to the DAC2v2 (pops, sync issues, etc). Again this is with my uRendu. I will be trying other devices with it for native DSD playback to try DSD 512, and will report back my experience. Regardless, this plus the W4S DAC2v2se is excellent sounding. As usual YMMV, but I can recommend this without hesitation.
  4. Yes, the pin 1 & 3 & phase shift has got me thinking. BJC can't terminate HDMI pins in a non-spec config (and they are pre-terminated in China), which isn't terribly surprising knowing the cluster around HDMI compliance, etc. Not a show stopper- for example you can get HDMI breakouts from Adafruit with euroblocks or solder pads. https://www.adafruit.com/product/3119 https://www.adafruit.com/product/3118 And of course this would work with making a custom SU-1 IIS cable...
  5. Should have this unit by mid-week. Will test with my W4S Dac2v2SE and mR & report back.
  6. Apparently its not being released until mid/late June, so I should be getting it next month.
  7. Spot on! Been more burn in and this DAC has really come to life... and the SQ is much improved over the DAC2 DSDse.
  8. I live down the street from Blue Jeans Cable. I am going to ask them to make an HDMI cable with this configuration. They have a very nice shop/cable making setup and should be able to make a good, tight tolerance HDMI crossover. Will update when I hear back....
  9. Agreed- I went through the same decision making process and realized that putting my $ into a nice IIS bridge (SU-1) is the next best move after getting a mrendu.
  10. This is a good point. I've had similar experiences replacing things like voltage regulators with massive improvement. Think of how much even the top of the line regs cost versus some top of the line caps or even worse, cables.
  11. Yes, def. I've just put sonic orbiter 2.5 on my urendu - so it'll be a good test @ DSD512 native. I've found the manual for the Matrix bridge- lists out IIS pinout right inside which is greatly appreciated! http://matrix-digi.com/pdf/X-SPDIF_2_Manual_EN.pdf
  12. This is truth... Digital circuitry is super sensitive to parasitic capacitance, lead inductance and voltage losses (of course rfi/emi as well). I'd say in place of electrolytics for bypass/decoupling in digital use, try SMD caps if you can. ESR is almost a non-issue at this point. However, to be more practical in tweaking- in place of KZ, FC etc I would recommend TDK MLCC - C0G (NP0) dielectric (http://www.mouser.com/Search/ProductDetail.aspx?R=FK20C0G1H104Jvirtualkey52130000virtualkey810-FK20C0G1H104J) . These are quite stable across temps and great for this scale of circuit.
  13. After a week with the upgrade I can completely agree with jrsub. Its hard not to use the typical platitudes (from both hard science and fairy dust groups) in this scene. Much more accurate with a much lower noise floor translates to a more a natural and analog sound. I'd say the biggest change is the space between the sound - its much more pronounced. This also allows satisfactory listening at lower levels.
  14. Yeah, it would be best to keep the questions in the topic I created. I'm just trying to be helpful and answer ones asked here due to the overlap. I don't own a SU-1 and have no affiliations with any of these vendors. However, as a counterpoint, this is a problem solving thread so I see root cause analysis benefit with triangulation of related products.
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