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Everything posted by Sechtdamon
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Continuation of R2R DAC Discussion From Stax Thread
Sechtdamon replied to Sechtdamon's topic in Home Source Components
We'll meet with Mr. Tyler, Sir. I got a dac based on AD 1862; MHDT Lab Atlantis. I guess, when the time comes we'll compare them properly. -
We talked a lot about R2R dacs on Stax thread because of some bullshit design choices, And given the attention of the R2R, especially discrete dacs, I wanted to post all the findings in this thread. Discrete modules I found to play with: Transient Modules (the dac modules of 2nd and 3rd gen Metrum dacs) and Diy parts based on it (most of the parts they are selling as oem but diy parts are also avaliable): http://www.transient-audio.nl/ all parts can be found under this website http://www.transient-audio.nl/Ordering.html this is how to order guide Soekris Modules (there are two modules avaliable on each segment [oem and diy line], the differences between them are resistors which used on them): Diy type(195-295 Dollars) : http://soekris.com/products/audio-products/dam1021.html Oem type(260-370 Dollars) : http://soekris.eu/shop/oem_line_dam1121_en/ Hibiki Discrete R2R module (I do not have any Info on it) 290 Dollars on taobao : https://world.taobao.com/item/525195615222.htm?fromSite=main&spm=a312a.7700824.w4004-12659368213.2.4SmcUz Between 202 - 754 Dollars (incl shipping) on this website, there are 3 versions of it and i do not know the difference between them or if expensive ones are finished producs rather than modules) This one says aero edition but i did not see any differences between the modules: http://www.buyitmao.com/products/532950776394 Relatively Cheap Finished Products compared to well known abominations, based on discrete R2R modules: Soekris Dac 1101(based on old 1101 module I suppose, relatively cheaper than others, 650 Dollars): http://soekris.dk/dac1101.html I guess everyone know Metrum Acoustics' dacs (based on transient modules) Between 1250 and 7000 Euros http://www.metrum-acoustics.com/ Holo Audio Spring Dac Family (There are 3 versions with some differences between them) Between 1400 and 2400 Dollars: https://kitsunehifi.com/product-category/audio-gear/dac/ Vinshine Audio DacR2R Ref (based on soekris module, I cannot read which one as piece of the chasis covers it) 2100 Dollars: http://www.vinshineaudio.com/product-page/a5952b51-0edc-b170-4f94-648d4a9dec86 Denafrips Audio (I do not know anything about them but I guess they use their own R2R modules, and pretty neat boards they have. DAC-1Pro uses discrete module as they claim, I do not know about other producs) 3120 Dollars: http://www.buyitmao.com/products/520399273447 EDIT: Link (roughly) to pages in Stax discussion where DAC discussion starts.
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300 $ is just for the d/a pcb Birgir. The cheapest commmercial I've seen is the one I shared. I've seen shitty diy dacs based on it for 600-1000 dollars. Well It's same story I guess... Rising of Multibit, and people hyping it cuz it is discreet. But tbh I want to listen to it. I've seen something weird pricing on ebay and amazon... 2170 system for 1,5k? Wtf? Srm-252s still on sale for 350$, so 207 worths 1200$ now?
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Thanks my good Sirs. Well being aware of it helps a lot. And my limited info about psychology and psychiatry helps further. Actually, as my psychiatrist defines, my regular mood is hypomanic. And I can control myself in manic state, what is devastating for me is depression. I use that disorder for the good, I use it for the creativity it brings. And about serving as a soldier. I'm an individualist anarchist, at least I consider myself one. So I do not believe in army, I hate guns, violence may result death (I'm okey with fistfights) And certainly I do not want to put my life at risk cuz of bunch of losers cannot handle external affairs. And ofc I do not want to spend 5 month on something I do not believe. I'll be taken apart from them for a while Dusty, I'll stay at a hotel for a while In istanbul. but All of the remaining kittens are in home now. So my family going to take care of them till I got them new home.
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http://soekris.com/products/audio-products/dam1021.html (module) This is the module. But I do not know how it sounds. (sorry, if I misunderstood, I'll find the manufacturer and add here asap) Found the manufacturer: http://www.vinshineaudio.com/product-page/a5952b51-0edc-b170-4f94-648d4a9dec86 (Dac based on soekris)
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I'm sure using wood like that, can "warm" the sound, maybe tad bit more than required.
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While searching info about soekris dac module (a guy from the other website, who has reputation of building most 'something' dac ever made) , I've found more interesting usage of wood: Well wood can be used in very different ways, and I really don't want to call the name of the shits on upside down pcb and caps. I'm going deeper into being offtopic but, Dr. Gilmore you mentioned kitsune dacs before, and I saw some posts on HF, a guy from kitsune asking for board designs to a guy from another MoT. Do they use that soekris module too? And what Lamp uses so "expensive boutique" shits that price differs 10k? Okey, tubes costs 1-1,5k, what about the rest? Correction: As I see kitsune does not use soekris. But still I don't understand why he asked for it.
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State hospital already gave the report but It was not approved by government officals, now I checked from e-government website, It is certain: I'm not suitable for military service!!!!!1!!1! I got an "F" cuz of bipolar disorder I have! Yes I have pretty fucked up brain but, who cares!
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Sorry for your losses guys. I've never offically made a dog friend but, It must be tough. Sorry for your loss too guzziguy. I can completely understand you. Rip Rugby and Gringo.
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While children losing lives makes me nearly cry, the excuses of authorities push me to the boiling point. I'm considering going there myself and seeing what really happened, If I can arrange shits I have to do.
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Thanks for the enlightment Sir. Much appreciated. About Metrum 1st gen d/a's dac chips. A guy from diyaudio forum claims they are Ti DAC8581 (based on being voltage out, high speed, and industrial grade I assume). Well I'm not sure about this info but here is the link of the dac chip: http://www.ti.com/product/DAC8581/description
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Is it something like this sir? To change single ended to balanced? It is surely more than simple conventer adapter; ground loop eliminator, but I've never seen (never search) such a thing before. Can you forgive me for my ignorance and enlight me more please sir?
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Yesterday, 12 people (eleven of them were under 12) died in dorm fire in Adana/Turkey. Cuz of fucking carelessness. The doors of fire escapes were locked due to safety reasons... FFS. http://www.telegraph.co.uk/news/2016/11/29/twelve-dead-mainly-schoolgirls-turkey-dorm-fire/ I know, if I start to post death news from Turkey, I doubt if I can post that fast, my posts will swarm this topic... But still, 11 children died cuz of carelessness.
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Thanks Mr. Tyler. I have some cooking skills. I fry rice in butter (real butter, not market one) for a short while, that makes rice so delicious. I can cook some traditional Turkish dishes but, I'm better at all kinds of meat, fish and kebabs (everything goes well with raki) And of course living in a small, rural town has it's own benefits. Meat, chicken, dairy producs, vegetables are all fresh and natural here. I'm going to miss that part of living here. And Mr. Tyler, I forgot to add, If you'll be avaliable, we can cook/bbq, eat and drink rakı together.
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Holo spring is also in my "upgrade" list. Too bad Dollar/TL parity is pretty f.ked up now. I had thoughts between Menuet and this. But After Dr. Gilmore approves it, there will be no doubt. About cyber bullying him. Actually I started to feel bad too but, I was watching random It's Always Sunny In Philadelphia episodes, after seeing that scene, I started to feel sort of alright again. "Nobody loves salting the snail, but she (in this situation "he") gives you no choices."
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I guess Birgir partly answered it: v Made a correction.
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For I have not enough info about technicalities and making an electrostatic amplifier, so I'm asking to you directly: Are you planning build some for selling Birgir? Forgive me for my ignorance and straightforwardness.
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I really do not know what you people think about sharing private messages to public, but, no matter what, It is wrong for me. Even if it's about someone does not makes any sense. And tbh I and most probably anyone else don't need some proof for his ignorance and arrogance.
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I was looking at Umut's pictures and I found these pics: I found him on the walk side, It was winter and pretty cold, he got deep teeth marks on his chest and I took him home to cure his wounds. Umut, when I brought him home: Umut, after few months (like before/after pictures): And him, sleeping like hoomans: My familiy started to love cats with him and started to care street animals. Moral of the story: Never judge street animals by their looks.
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You are most welcome sir. I use same nickname. Also soon I'm moving to İstanbul for work. I'm working for a distributor of well known headphone manufacturer. If you want to visit, you are most welcome at there too. We have pretty interesting place for demoing.
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Yes my good sir, I'm also an active member of a Turkish Forum; Techno-fi. I went couple of meetings and also hosted couple of mini mettings. I cannot listen to gear as loud as most people, not even 1 song. I'm listening to My egmont at 9-10 o'clock with my sr-207 (Dac's output is 2,8V). Once I entertain a guy, who listened srs-2170 system at 3-4 o'clock. I've never been WTFed that hard before. When I'm about to experience new gear, I put amp's pot to minimum, then I roll it to a comfortable level. Yes, I go loud for a one passage of a song for reviewing (to see how the gear reacts) but listening to them at more than 80-90ish dB, naah. Well if he has hearing problems, then that situation may be normal(?), I guess. But isn't listening that loud worsen the problem?
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Deleted and merged into another post.
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I have 3 things to say: 1st: I really do not understand why people listen that loud. Even with my 252s I couldnt go further than 10-11 o'clock. I mean shit. Driving T2 into clipping... 2nd: I was admiring you guys, Today I admire you more. I couldn't stand against astro or his bs after 2-3 posts, I stop posting against his posts yesterday, He is really tiring. You are really good. So: 3rd: I feel guilty/ashamed now for I own a dac with tube (2c51 variants) buffer; MHDT Lab Atlantis. IMHO, It sounds good to my ears but. If you want to see inside of it: It uses one Ad1862 per channel as i know, Dr. Gilmore. It sounds pretty analog, but tad bit forward sounding. I paid 860 Dollars for it, including shipping. I bought it cuz of curiosity, as always. It turned out good sounding one. Here is a closer look to the dac chips: PS: This post has no sarcasm.
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I was collecting books on electronics, how electricty, especially electrostatic, works etc. Mainly old university lecture books... I bought a book recently. I thought it was just an old lecture book. But turns out it is a extremely rare book published in 1939, and only 2000 coppies printed. And mines condition is really good for its age. It was written by Prof. Dr. Georges Bruhat and translated from French to Turkish (well ottoman language; some kind of blend with Turkish, Arabic and Farsi) It has good basic info about electricty. Hard to understand cuz of its language, but still...