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sunny_time_99

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  1. Beside diy? Thats really hard. Because the most available even high pricetag psu have a lot of bottlenecks inside. 2-3 years ago i spend a lot of time at home with the js-2 of a friend. It was a good benchmark for me while i checked out more than 40 differend designs. The big plus... : its available and for the price of a sr7 you can buy 2....
  2. Guys... The sr7 is not the only good sounding PSU on the Market. At the moment you are just building legends instead of beeing open minded. If you want to have a realy good setup you need a supreme class psu at every important part. In my setup i use 20! That are sounding close to the top-class sr7. Thats a much bigger step than only one... Regards Sunny
  3. Hi rick, the improvement is not allways the same. the biggest step was the clock inside of the Ideon 3R followed the change inside the pc. the clock for the 9038pro and the 3 clocks inside of the usb/i2s converter were all noticible and important. but its the end of modification. spend only 1.000 euro for modding the 3 clocks of a cm6631a or xmos? only possible if you are as sick as me. thats the latest thing you can do - first there a a lot of better tweaks for the money - a server/client e.g., a modification of the switch (i modded my dlink with a sellarz audio clock).... and so on. a crystek tuning is recommended, if you are unsing "normal" clocks. you can use small carrier pcb´s to connect the 575, 957 clocks with your existing equiptment. the neutron star is a realy good sq- update for cchd957 and 575. maybe not in a scope-contest - but this thread is only for listening experience... as i mentioned before... wait until you try it, until you tried everything in this thread first - its the most expensivest mod - not the best value for the money. i would allways do this again, pls don´t get me wrong, but i am sick... Hi, imho its about 50-60%. I prefer a server/client solution. the sq rises about 10% if two futro S900 are sharing the job. of course its much more money, but worth every (euro)cent ? in my setup at the moment i can swap the dac without missing that much. mit favorite dac at the moment is an diy 9038pro with 6 seperate power supply, a class a output and 3 Neutron star / and one neutrino star. I am using a heavy modded ideon 3R with an neutron star. but i still can enjoy music when i swap that dac back to a tda-1540 design, that is only playing with 14bit! or a heavy modded implementation of the usb monica . therefore i think the dac is not that importent anymore. bit. in the past i spend the most money on the dac... today, we are working on makeing that thing cheaper, without loosing musicality or resolution. the software makes min. 50% of the streamer, nuc and of course the nas, of you are still using one. second place behind software is the power supply. not only focus on ripple rejection or low output impedance. there are a lot more, that a good sounding psu must be able to do. behind the power supply, the clock is the next point - but were now in the last 10% -sq-range... pls, don´t take this personel (i just picked your posting), but imho if someone is still using any kind of a windows based machine, a mac os, j-river, hq-player etc.... can´t even imagine what is possible at the moment. switching the software costs nearly nothing, but after that maybe the coverflow is not that nice... but the sq is on a different level. the cchd-575 is a realy nice sounding clock, i agree. but the clock itself is not only the one who is making the difference. the implementation is also important. look at the neutron star. lars clausen is using "normal" clocks - but the sq is outstandung. i am realy happy that the 24mhz version of the cchd-575 is (sometimes) available on mouser. this, and a good psu is a easy update for a lot of stuff. regards sunny
  4. That is definitely true. And the dac is only one part in the whole game. And my listening experience is that it has not the biggest influence on the total sq. I focused on the dac for years and build dacs with all available dac chips in the last years but today i would only say that the dac makes 20-25% of the total sq. There are many possibilities to get a better sq without spending money for a new dac Regards
  5. My opinion befor spending so much money for something new... Is allways important to find out which part is responsible for the better sq. Thats what am i doing for years now. Changing one endpoint to another will never end the game, because all retail stuff got build in other bottlenecks. There is nothing available on the market without a bottleneck. I am using 6 neutron star 2 in my setup until now and some neutrino star...The using of neutron stars is realy a big step in sq. But i am not using their power supply. The neutron star power supply sounds... Like the psu i build 3 years ago. The clock in a system should have the best psu. For that reason i build a kaskarde of my psu with 2 regulators at minimum. Regards
  6. Its so funny we allready tried this in 2014 /2015 with first 3.000F boostcaps, than boostcap plus regulated psu, than with regulator behind, than switching F350 cells with a rpi doing the switching job... Than with choke smoothing and regulator... A polymer in the output behind the regulator... And and and... more can be found here: (german language only) https://www.diy-hifi-forum.eu/forum/showthread.php?9501-Auf-der-Suche-nach-meinem-idealen-Netzwerkplayer-mein-Leidensweg/page2 That was much earlier than anyone else in the internet. But in the end, we allways found out that there are much better ways without ultracaps. It was a nice way... But today i will not use ultracaps anymore in my system. I just found 2 pics from 2014/2015 on my mobile phone...but i can find pictures from every step. From time to time a friend uses these old ultracap psu to make sure how far we are now away from that point. But i still like the way ultracaps indicate mistakes in your wireing ? Regards Sunny
  7. sunny_time_99

    DIY DC power cables

    Hi ralf, i think middy and i got the same problem. He is searching for a star-quad cable for +15/0/-15v and i was asking for an idea... +65/0/-65V. I finished the cables that are connecting both big caps in the two enclosures. I was too lazy... Just done it in 12AWG silver plated copper... And a js shielding. Regards Sunny
  8. hi, as long as one component reacts (e.g. the m-scaler) on a component-change in the upstream... ist not game over. after 4 years of expensively hunting for the holy grail in streaming. i must say that i don´t belief, it will come to an end soon. there are so many influences on the total sq, so many strange discoveries made until now, noone got a answer, why that happends and how. I think we realy understood not even 20% of CA. and if you had a look at most of the professionals and the retail stuff, they do either. for the most i think, noise dosn´t realy exist. regards, sunny
  9. Why are you so focussed on roon? Before i switch back to squeezelite... I prefer the daphile squeeze based solution. You got a server, you got a client... Took you about 10 minutes to prepare a usb stick with the 64bit real time kernel... And 2 sd cards etc to give it a try. At least 20min...all is installed and running. I guess you will not make a mistake. Regards Sunny
  10. thats my opinion too. the last years i spend a lot time to build dac´s better and better. but in the last months we put more focus on the streamer itself. and later on server/client typol. if the frontend is state of the art - its not a big difference if i change froim my actual 9038pro design back to my beloved 14bit tpa1540. The difference - powered with the same supreme psu units - is in the same range if you change a good usb cable into a 1euro-came with the printer usbcable. the change of sq was bigger from a futro with daphile to 2 futro with daphile in server/client mode. and if you need to have a look on the price tag... its much cheaper than spending a lot money for a new dac. better save the money an spend it on the upstream. if your ready with that...and the wallet is still full, try to update your creapy powersupply of your old dac... change the clock ... the op-amps end so on. you will learn a lot and have more fun. regards sunny
  11. the SR7 must be that expensive, like other must have that price tag too. it depends of the amount of possible sellings...the developement costs etc.... i think i dont need to explain it. it has def. a good price value. but using it is not what i call diy. that means find our own way - not buy something and put two cable together ? as i start my way to audio heaven (will never end) i use diffeent linear power supplies, and start to make my own comparison. that takes years for me and more than 40 differend circuits until i found my personal favorite for my personal taste. it must be scalable, flexible and should work very fine in digital an analog parts. of course its over engeneered, but it fits everywere. all that pus units left a small part in my actual favorite design. since the end of 2016 i am working with the mosfet-rectifier and lt4320. I asked Vasilis Tounas from Ideon to draw it in eagle -i am to stupid for that- since my first dac we became one kind of oldfashiones letter-friendship - not uninteresting for both sides, i think. look, i need for a complete dac, streamer, router, switch-setup with server/client solution about 15-20 pcs of supreme power supplies on same level like the JS-2 or SR 4. in positive and negative for e.g. the op-amp. this is overkill, i know - but i can´t .... i must ... you know its a hobby... religion... Count the amount of money for such a setup. that´s my reason for diy. such a universal power supply should have: a dc trap before the transformator, a good transformer, a common noise choke behind becoz the lt4320 reacts very sensetive on cm-noise, the lt4320 with extreme low resistant mosfets, a differential mode choke like JS use it in his older designs for the squeezebox and the JS-2 (sometimes i use normal speaker coils instead of the big hammonds), fast and good sounding caps like the Nichicon muse, a 780x -style regulator like belleson super reg, daxa/newclassd uwb2/schellarz audio reg or the sparkos labs reg and a hand full of silmic 2. (i like the combination of muse before the reg and silmic II behind - thats a kind of personal taste). wen you want a resistor to give the transients a place to go and a a small input/output 0,1-0,3uF Wima Foil. Thats it. you can build that from scratch in about 40 minutes...due to the fact i got some friends, who want it to...i have pcb´s now. you can ask me if you need the schematic. but its so easy. on the pictures the choke is missing. beware of all chinese boards. often they use fake parts, wrong designs, old parts - relabled. buy two - get 2 different - and different sounding. don´t buy lt1083-85 regulator designs in the internet - 99,5% are fake - on ebay 100%. beware they use other regs that can only deliver 1-1.5A. regards sunny
  12. Hi, for my opinion, don´t expect too much from Ultracaps and LiFePO4. We allready use that since 2014. At first i like the idea only to listen Music out of a big cap without beeing connected to the wall. But in a direct comperision the ultracaps and the LiFePO4 were only second place behind a good regulated psu. I have tried a lot of battery/Lipo/LiFePo4/Ultracaps up to 3000F cells during the last 25 years of Hifi - i was never satisfied. The same with lt3045 Regulators. i really dont understand the Hype. Its a low ripple, ok, but the soundquality is only midclass. Everytime, when i use them the Sound seems to be thin for my ears. Kind regards Sunny
  13. @rafa there are only 2 transformers. This is allready a compromise. Normally i use one transformator per psu. What you are pointing at is a differential mode choke. This is part of every psu i build. For the last 4 years i build a lot more than 40 different psu with different designs vom battery to ultracap vom choke incl. to shunt back and forth. In a high end psu you can try your very best to work against some of the more than 30 different kind of noise. Every transformator produces cm-noise. Therefore a cm-choke in the ac line is included. The hammond choke helps against hf-trash and differential mode noise. The big audible difference is the mosfet recitiver. Every kind of diode sounds different - from glass to schottky. I used differend kinds of zobel during the years. But this mosfet stuff is a big step in sound. Clearer and more dynamics than any other. Space is not my problem.... If you would see my dacs. ? I never would use a ssd. Compare hdd, sdd, msata, sd, usb stick an cf and let your ears decide... Every part has a different power and that's importent. Best regards
  14. Hi, did anyone tried daphile in a client/server setup and compare it to audiolinux? for the last nearly 4 years i am using daphile an the futro 900 thinclient with realy supreme audio results. i use it in an Server/Client Setup with my own designed power supply. To try daphile its only a 5 Minute thing to do... You just need to prepare 2 usb sticks or sd-cards to make it run. anyone here who tried that too? you can buy my recommended futro for 20-30 euro on eBay - and even when labled Fujitsu its still made in Germany! Its a perfect match for the daphile 64-bit rt kernel. 4GB ram is highly recommended. Throw the 20v smps and use a good and clean min. 2A rated LPS for optimal results. On the picture os my prototype client. Newclassd neutron star reference clock. DC filter, mosfet rectifier with lt4320, choke filter and belleson and uwb2 regulators. Seperate power for thin, cf, clock and a modified ideon 3R MK2. A bit small the enclosure... But its ok... regards sunny
  15. There are a lot more problems. The easiest way is to use a pc hardware that doesn't need a fan like the fujitsu futro ones. Its a computer with a high audio performance. Best regards Sunny
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