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Quadman

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About Quadman

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    audioholic

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    Knoxville

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  1. He's not using desktop HQP where as you are. The settings are the same on desktop and bit rate is higher up closer to output in HQP settings. For 1024 I would try 16-20 bits no more, auto may adjust down to that not sure.
  2. I was playing around with 32fs PCM the last couple of days and when I go from DSD512 up sampling to 32fs PCM up sampling the volume with PCM is LOWER than the volume with DSD. Is this the same for you? Wednesday evening while playing DSD512 I switched to 32fs PCM and had to raise HQP volume 6 clicks to get the same perceived volume as DSD512. May manual only says PCM at 48K output 2.9V RCA and DSD 64x output at 1.45V (-6db), no mention of higher rate PCM output
  3. I typed faster than my brain worked. Yes PCM 32fs, dither was LNS15 (not the ADSM7 512+ DSD modulator I said above). With 20 bit output I heard the HF hash/distortion. Then I remembered something Jussi said about bit output and lowering it for better playback (no distortion) so I lowered to 18 bit and HF hash went away. Here's a quote from Jussi on March 22 I believe; ".There shouldn't be notable difference between16- and20-bit at 1.5M, or even at 768k...." He was referring to the noise floor. I don't have a HF issue at DSD512 with 20 or even 21 bits, generally I kee
  4. Ted, I assume you are using HQP. Try lowering the bits in HQP settings. I am working in Listening room, so turned on system and noted that HF hash you describe with 20 bit output. I lowered to 18bit and it went away. Poly-sinc-XTR-Mp with ADSM7 512+ a fairly high computation filter.
  5. I'm a little short of horse power (10700K), but when no drop outs occur it sounds wonderful and I can't wait for 12th gen CPU which should handle 1024 with no cuda on a lot of modulators.
  6. Wow, 99.9% of my catalog and Tidal and Qobuz are PCM and for years with Gustard X20U, T+ADac8DSD and now May L2++ I up sample all to DSD512. Back when I first got the Gustard X20u to output DSD512 I was shocked at the improvement from 256 to 512. 512 was analog and 256 was really good digital.
  7. Are you listening to PCM 1.411/1.532 Mhz? Why would DSD guy do that? I don't listen long enough at those rates to get fatigue (what little I do, I do not note the distortion you refer to w intel MB). The thinness and 2D images do nothing for me so I run back to DSD512, which has body, soul, 3D images, huge walk around stage and so much musical joy.
  8. Ted, you didn't mention you had an isoregen in the chain. I have one and tried to insert it last week. Firmware 30.12 on my dac and they were unable to see each other so I removed it after rebooting both dac and PC. The May does not like the IR with 30.12. Another piece to sell.
  9. Ted, I seem to remember you saying your dac was a demo unit. My guess is you have firmware 30.12 on it. The Holo asio control panel will show you what firmware is on machine. 30.12 allows DSD1024 and PCM 1.4/1.5, But it has issues with non-intel USB ports. So either move to regular USB port or flash firmware back to 30.14 and you should be good. You loose 1024 and PCM 1.4/1.5 doing so.
  10. I was going to remove those metal transformer bolts, but with a 6MM allen, I think, they are really on there, they probably used an aggressive loc-tite on them. I applied some decent force and they would not budge, so I left them on.
  11. I bought my dac used so did not have to go through the break in period but I find it hard to believe this Dac could ever sound bad. The music it is making in my room is SOTA. Thursday I completed my AC line upgrade in which I removed all switches from the AC line. The on/off switch on the back is now bypassed (fuse is still in circuit), and the two voltage selector switches (110 or 220) on the PSU PCB are now bypassed. Skeptics will doubt this, but this change made a very nice uptick to the sound quality. I put it only slightly behind the Capacitor upgrade I made on my previously L2 dac.
  12. Yes, I only replaced 2 caps, you can see what I did in the darker circle areas. The rest is factory, but the Picture makes it look way worse than it actually is with light and shadows playing together and doing crazy things. To the naked eye it was nothing alarming. Hand soldered I am sure. So if @Toni-Mang can stack like this and have no heat issues and @dkdali had major heat issues maybe something is wrong with his dac, maybe the internal voltage switch is set wrong, or 2 pads on the Dac module are shorting or a bad component. I'd email Tim for his perspective.
  13. Yes they were a bit sloppy in cleaning off flux residue, not sure what type they used but it must not hurt PCB's. Throws a crazy shadow tho.
  14. They sure do look odd in the photo and I don't remember them looking that odd in person. Below picture shows what I think are the items that you point out with your arrows. Using your arrows as guides the right arrow has to be this omron 2 pole relay switch. The middle arrow is probably that bank of 4 small caps and the Left arrow is that tiny device under the USB board, I can't read it to make out what it is. Kitsune site has some decent shots of it. So this is flux residue combined with solder and shadow reflections making it look very odd.
  15. You still have a lot of stuff on the dac. Is it just warm to the touch now so you can leave your hand there?
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