What a long, strange trip it's been -- (Robert Hunter)
Apr 12, 2016 at 9:53 AM Post #618 of 14,566
One end of the spine is the same as the other.
 
They both spew out your company name......  
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Still, all the best for a great recovery.   
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Apr 19, 2016 at 11:41 PM Post #621 of 14,566
  ...
 
Finally we get to cost. The highest quality resistors for the tube preamp are 3-7X the cost for a Mani. Film and foil polypropylene caps at tube voltages are not cheap, and the 20 times power design is much more expensive, not to mention the regulation. The metal for the enclosure will also be at least 6x. The net result is that such a proposed design will be 4 to 5 times the price of a Mani.
 
Given the above info, what say you all?

I say, sign me up. Sign me up even more if it can handle some line level inputs. 
 
May 1, 2016 at 3:54 PM Post #623 of 14,566
s___ man havent been on this reading this sight for a while now ,been a abit of a hectic month but a good month .so damn mike please dont go and die on us ,you the only person on this sight that i look forward to hearing what you gotta say ,and i always take something away from it .since you been going into surgery and proberbly contemplating whats no the other side ,im gonna tell you how god works in mysterios ways ,well its proberby not mysterious just a logical set of events that lead up to a chain of events ,but i did give god a bit of thought when the guy accepted my offer for his hd800s headphones. so what happened was moneys been coming in steadaly this year got the amp i wanted in january and since then have been searching every day for a reasnable pair of h800   ,then on tuesday there was a russian guy aucioning a pair of hd800 brand new ,they sold for 730 dollars and the guy beat me in the action by ten seconds ,a little pissed off that i messed up the bid ,iv gotta work on my ebay stratergy .anyway f______ lifes to short so the next day back to my morning ritual of searching .and found a pair of hd800s made the guy a offer for 790 pounds and got them .so like the very next day after coming so close the day before the perfict set of headphones just landed in mu lap.i was f____ delighted man, im lucky enought to be able to listen to music all day at work but kieth jarret never sounded better even though iv been listening to the same album for about a month now ,thats the sweetest iv heard music in a long time.anyway here s some music to help you recover bob dylans  dvd    the other side of the mirror  ,iv been listening to dylan for twenty years but found more insight into the artist then anything else .dylans 1994 woodstock europe concert with his power band behind him ,the first song jokerman is just phenominal.its on you tube and sounds better when played through chrome ,i dont know why i prefer firefox but google must limit the bits they send them or something.ravi shankers 1974 dvd concert at the royal albert hall  and the best grateful dead concert iv seen grateful dead 6_21_89 shoreline ampitheater moutian view ca ,which is on youtube and sounds as good as dvds iv got of theres,got one quesstion ,during the day when im n not listebing to kieth jarrret i switch between lyric fm in ireland which is the best radio station iv heard ,i dont know how the irish have done it because the rest of the stuff on the airways is on par with pornagraphy ,no hang on iv seen pornos with more artistic merit then whats on the rest off the airways here in ireland,so yes man can you recomend any radio stations that you think are good ,rock classical or jazz .
 
May 2, 2016 at 10:52 AM Post #625 of 14,566
 
im lucky enought to be able to listen to music all day at work but kieth jarret never sounded better even though iv been listening to the same album for about a month now ,thats the sweetest iv heard music in a long time.

 
I managed to see Keith Jarrett in San Francisco in 1977 during his 'Staircase' tour.  The man really looked like he was torturing the keys compared to the melodious sounds coming from the piano soundboard.  Incongruent to watch. 
 
May 2, 2016 at 2:52 PM Post #626 of 14,566
   
I managed to see Keith Jarrett in San Francisco in 1977 during his 'Staircase' tour.  The man really looked like he was torturing the keys compared to the melodious sounds coming from the piano soundboard.  Incongruent to watch. 


yip saw him last year in dublin   the first twenty min dident know what the man was up to a almost incomprahdable form off notes     but when he got going    he did like deep south chruch music and a few standards   summertime     damn good show      only been listening too him for a year ,hes one off the guys i can listen too and not get bored ill spend a month listening to the same album and i gotta drag myself away
 
May 11, 2016 at 9:19 PM Post #627 of 14,566
First post here since the surgery!  Still wearing the medieval torture device on my neck.  Can't see my feet, dick, or keyboard.  Here goes:
 
So here we go with an Yggy design discussion. Strengths and limitations. Limitations?? Yup. Relax! It's upgradable, remember? I'll be going to go into a section by section tear-down of details, before I close with an op-ed on the futility, hubris, and presumption of attempting to sonically tune a D/A converter component.
 
So how about we begin with the power supply?? Customary in the industry is series regulators for all of the DC supplies. We do that in all of the DACs below the Yggy. Sorta very standard. Now, just to separate us from the others, we tend to break up the power supplies in more regulators than others, and even more regulators as we go up the line. For the Yggy, we use shunt regulators, which lie in parallel with the load. Far less efficient. Far better performing until you add current sources to drive them. Wow! Even less efficient and even lower noise and better regulation. This is the reason that Yggy provides the detail it does over Gumby, which has a more standard power supply. It is also he reason Yggy draws just about triple the power from the wall socket.
 
What could be better? Batteries inherently charged by the regulators. Not the lithium kind. Not just because such batteries randomly launch flaming balls across your listening area which are capable of causing third-degree burns in vapers and bring down 737 airplanes for large quantities of them self-immolating in unremarkable flight. Nah – these are for lightweight dilettante listeners willing to overlook real batteries with real low impedance – lead acid. Now there ya go!! Imagine the bragging rights you can have explaining to all of your other fellow audiophile friends that your power supply weighs over 100 lbs!! Imagine the thrill of your audio room with acid burn spots on the floor as well as the scent of an auto repair shop!! No? Then I think we will stick to the power supply we have as being best we can do within the constraint of practicality.
 
So how about the USB section? Well, for now you got me. Despite the fact that I have almost certainly designed more D/A converters than any other living person (dozens and dozens), I have only designed 8 USB sections. Three are in and one has been obsoleted current Schiit products, 3 suffer from various levels of excess suckage, and one was XMOS based, therefore drawing more current than your average 747. Rest assured I am constantly tinkering with better sounding USBs, and when available, (not anytime soon) will offer them at a price where current users will NOT get hosed.
 
Now we get to the digital section. This is the section that if you hear what it does (some cannot), you will NOT be able to replace it in ANY other DAC. The megaburrito filter is unique in the D to A world. It is designed for the reproduction of redbook material above all else. It has a higher bandwidth than any other in the frequency domain, and an ability to optimize time domain cues so that the reproduced music stages in an uncanny way, particularly wih speakers excelling in the time domain. Head-fi threads are filled with anecdotes of startling staging being heard, even around corners, fooling the users or their friends into thinking real people are there. This is what some cannot hear. Why? Dunno. Some people are tone deaf, and some are time domain deaf, or need to upgrade amps/headphones/speakers. I have looked at every other filter and am confident that none can offer the time domain performance that ours does. If you listen exclusively to techno/electronic or other computer generated music, this will be of little use to you. If you use your system to reproduce musical events, it will be vital.
 
How about the DACs. Multibit rules! We use the AD5791 which some Luddite on another forum called me out on because it is an industrial DAC, and therefore unsuited to audio. Well, industrial DACs are far more accurate than audio DACs, which are designed to be cheap. Audio DACs will not work for medical imaging (random gross errors) or weapons guidance (dead children rather than soldiers). This is the same as why industrial tubes sound better than 12A_7 audio cheapos. What about the guys who make their own resistor ladder DACs, some with Vishay resistors. Wow! This requires that the DACs be huge. Huge = slow (tubey) – therefore quite euphonic. The problem is that, say, in a 20 bit system, the lowest bit is a millionth of the biggest one. It is a huge engineering nightmare to work on a ratio level for a sample size of one, much less in production. My money is on the fact that no two sound the same. Maybe that's not a goal. Besides unless the DNL/INL specs are in (I have no idea how they can do that in a discrete resistor cluster-they certainly do not spec it), you still have the thyroid coming out when the patient has colon cancer as well as the dead kids with these in the air DACs.
 
Analog!! Best for last! Just a few analog comments. I never, but never try to voice my system with a D/A converter. I try to make it as neutral as possible. If you want to voice your system, that's what amps, headphones, and speakers are for. If you want to go crazy, get somebody's equalizer. Here's my rules:
 
1. Solid state gain = more overly detailed (perjorative - bright)
2. Solid state buffer = much less overly detailed (perjorative – much less bright)
3. Tube gain = more tubey euphonic (perjorative – dull)
4. Tube buffer = less tubey euphonic (perjorative – less dull)
 
And the winner is ---- number 2. Closest to zero. Voice it with the amp/cans/speakers you like.
Remember, most of the real $$$ high end DACs are built in very unlimited quantities for a very unlimited price. You can bet the maker is dead serious about every unit he makes and voices it to his system and taste. I am sure that is why there is such a wide variety of opinion.
 
I'm not sayin' the Yggy is everything to everyone. It is not. Voiced with the system you like, it is a ton of fun which gives you an amazing amount back for what you put in.

 

 
 
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May 11, 2016 at 10:24 PM Post #629 of 14,566
Originally Posted by Baldr /img/forum/go_quote.gif
 
Analog!! Best for last! Just a few analog comments. I never, but never try to voice my system with a D/A converter. I try to make it as neutral as possible. If you want to voice your system, that's what amps, headphones, and speakers are for. If you want to go crazy, get somebody's equalizer.
 

I have been saying that on this Forum for years, and no one will listen to me.
 
( And I am very happy to hear that you are feeling better !)
 

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