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  1. 2006be11 works well on Linux. I’ve been testing it for two days, so far so good. Thanks for the tireless effort. I will spend another few days to see if it goes well on windows and report it back.
  2. @Miska Could you please explain the "Change output stream start/stop handling" in 4.3.3 version? Thanks.
  3. I sense him discouraging the oversampling apporach. Quite a pity he has missed so much fun. 😏
  4. For R2R part, I applied the same filter as SDM: poly-sinc-xtr-lp, new dither: LNS15 and upsampled everything at 1.536M. The sound is very transparent, nothing warm or blur as many said R2R used to be. I believe it's a good and rare thing for a R2R dac? Frankly speaking, I personally think R2R part sound is a bit dull compared to SDM part when using HQplayer. Less holographic and organic. I don't have other R2R dacs to compare with it at the moment because I used to avoid purchasing ladder type dac. I would say DSD512 gives obviously more 3D airy sounding while DSD256 gives smoother, more density, more analogue sounding but less airy (This apply on both DAC8 and MAY) . From my observation of many "hiend" product marketing slogan or reviews. This "air" thingy is quite a critical index for a DAC to be valued. Unlike DAC8 gives "clean" and “wide" LPF options, I was informed by Jeff that MAY applies 45K LPF. So I believe 7th order modulator should fit MAY very well technically. At least it sounds good to me. I prefer ASDM7EC DSD256 over AMSDM7 512+fs DSD512 a lot when listening to vocal. I was a bit shocked when I hear a much better presence of vocal detail like spittle, lip smacking and saliva these kind of things. For orchestral, DSD512 is preferred. I also did my own trick/compromise and this may not suitable for others. For using Spectral gear, MIT/Spectral interconnects are compulsory and my MIT Oracle Matrix HD90.2 speaker panel has a 2C3D switch - when it's on, giving a more 3D holographic image. To be honest, I don't consider it as a serious function and prefer it to be off as it has its own limit and sounds a bit fake in some music genre. By comparison, DSD512's 3D effect is more natural than MIT's artificial 2C3D. But the 2C3D works well with ASDM7EC DSD256, offering smoother, more analogue yet providing 3D airy sounding similar to DSD512 until there are hardware can fulfill EC modulator at DSD512.
  5. Yes, MAY has no volume control in either OS or NOS mode.
  6. Ok, let me make a simpler example: When I dragged the same track time bar (e.g. from 1:20 to 2:45), there is a pop occurred on MAY (or DAC8 on windows). I remember I sent an email to T+A regarding this and they confirmed this pop noise and told me it's normal. Yes, the buffer time was set to be default. Maybe you have a different firmware?
  7. Some subjective listening impressions: To better check any difference MAY could possibly bring compared to my previous DAC8, I applied the same HQplayer settings on MAY as on DAC8 DSD, so only DSD512 part. I will check the R2R or DSD1024 bit later on. MAY just has more fun to explore, needs take some time I'm afraid. In general, I find MAY's sounding is very neutral, transparent and resolving. By comparison, I think DAC8 is obviously warmer while MAY is obviously calmer. This "clam" is not related to "not musical" or "thin" sounding, maybe I should say more neutral. - I'm quite picky about solo piano tone and will always test the piano track first on any new dac. So I played some good DSD piano recording from Challenge Classics label and I think MAY offers equally satisfactions as DAC8. I personally judge the performance of piano playback as an indication of sound tuned to be authentic. - You might be worried about this "calmness" of MAY might have some trade off like the mid range will not be soothing or musical. But it is not the case. I picked some tracks from some female singers who have edgy or airy voice like Kate Melua, Stacey Kent, Kat Edmonson. The vocal part is musical and pleasing with good density yet the instrumental part is being more neutral and transparent. - The thing I'm struggling/uncertain to judge now is about the bass. At first listen, I think DAC8 has more punchy and bouncy bass but then I notice that I prefer some other tracks' bass on MAY. For example, I prefer DAC8's more juicy bass when playing Coldplay's album. When playing some Daft Punk's tracks, then I think the bass on MAY is just about right and I can hear more bass details. I'm not sure if it's appropriate to conclude MAY offers better quality bass rather than quantity. I'm also not sure whether the warm/clam tune may have an effect on bass or not. Need more time to check. As you can see in my system, I'm also a Spectral Audio fan. So you might somehow speculate my taste as natural, neutral, transparency, fast. If you want to ask me which one of these two DACs possesses more similar character to Spectral gear. I'm quite sure it's MAY.
  8. I also don’t have start/stop pops. The pop I meant only occurres when switching to another track manually. Dac8 used to have this kind of pops and it might still have it on Windows OS.
  9. Another thing I like about MAY is its usb connection. Since it has a quite good USB galvanic isolation internally, I tried not using the USB dongle ISOregen and found the the sound "pure, clean" enough to be satisfied. I’m sure someone can observe some differences/improvement if you plug these ISOregen-ish things back. But for me, MAY itself suffices. I enjoy more of the trouble-free operation. I’m a bit fed up with plugging dongle to the dac and powering the dongle with another LPS and then worrying about their disconnection from time to time. 😂 In my opinion, all DAC nowadays shall consider implementing galvanic isolation for its USB port or consider them outdated.
  10. As I said, it’s more a Linux issue. Good to know MAC doesn’t have that hassle.
  11. I will now start with more objective operational stuff and later on towards a bit subjective things. For connectivity, it is a VERY HQplayer friendly DAC. The manual will tell you to install windows USB driver in order to support DSD1024 & PCM 1.536M playback, but it is not necessary. I strongly recommend you use to burn HQplayer NAA ISO image on the USB and plug onto your NAA, then HQplayer will recognize the MAY's end. I believe the ISO image is a customized linux kernal by Miska and allows your NAA to playback native DSD1024 on MAY. As I'm sick of windows OS for audio output, I can't be more happier for this. However, I do find that there is a tiny pop during DSD manual track switch on MAY (no pop during gapless playback track switch) and Jeff told me that there should be no pop during switch track on Windows OS using the offered driver. For linux, he has little idea and cannot guarantee. I'm aware that this pop noise is quite a common caveat for DSD playback, but the latest custom T+A DAC8 DSD firmware has solved this issue after years of struggling and effort of Amanero. If only for the sake of perfection, it would be better if MAY can make this pop disappear. 😉
  12. I see people starting discussing the MAY DAC on Spring thread and ASR forum has given some detailed measurements of MAY. As an early MAY user, I feel it‘s necessary to open a new thread to have more discussions for this exciting DAC. I just received it a few days ago and it is still warming up. So bear with me with the listening impressions as I haven’t got too much to say yet. I purchased MAY mainly for the purpose of using its NOS feature with HQplayer (So I don't care other OS features). I used to have T+A DAC8 DSD and guess I might not help myself comparising these two DACs later on. Persoanlly, I'm confident that my system is quite transparent and it's good enough to demonstrate differences among sources. Nevertheless, I have my own listening preference and may not suit your taste. If you want to pull the trigger on this DAC, don't judge too much of my comment as I'm not that type of person who is enjoying typing lengthy paragarph of subjective listening impression. I will also share some of my practicial findings when using MAY. Sometimes these little trivial things can be helpful or can even expose some bugs, small issues so that product can be improved later on accordingly. Ok, no more jibber jabber. Hope you find this thread and MAY interesting.
  13. I also flashed my dac8 to 2006be10 a few days ago. Boot HQplayer NAA image on my CL100 via USB. Work like a charm in most time. I only detected some distortion one time during turning down volume of my preamp. I'm not sure if I can blame on amanero firmware or something else, will keep an eye on it for a bit more time. Soundwise, it's wonderful. I sense better transparency and there is even no pop when switching tracks. Maybe because of better I/O optimised on HQplayer OS than windows 10, the lyrics timing on ROON syncs correctly to the track. I used to run NAA on Windows 10 and always got 1-2 seconds of latency time (was quite annoying when I tried to switch track or view lycris)
  14. @Miska Thanks for the 4.0.2 update. I see you adding some new features such as 48K DSD and adaptive output rate. Is it possible to add this function: When we greyed the 48K DSD option : upsampling DSD file (DSF) to DSD512 at 48K rate only. Upsampling DSD files to 48X512 does not need too much CPU horsepower since it does not apply the SDM filters. Could you give an example of using greyed adaptive output rate? I'm a little confused about this option. For the case of 48K rate 512 supported DAC like T+A DAC8 DSD, when doing DSD512 upsampling rate at non-2s filters, I have to tick the adaptive output rate. Otherwise the workload of CPU will be extremely heavy if upsampling 44.1 → DSD512 x 48 and PC might eventually collapse. I don't know which scenario this greyed adaptive output rate can be properly used.
  15. @Miska Among windows, linux and mac os these OS, which version of HQplayer you think has been best optimized for running filters in terms of CPU multi-core and GPU cuda offload? I believe mojave cannot support Nvidia graphic card, so cuda offload on that system will be a problem.
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