I have set R1 to 20R (33//47R) and Voltage at R22, 21,37,38 =4.1-4.2, and Voltage at anode 89-90V, B+=197, should this be ok, or need to drop R1 lower to increase B+ ?
everything was good, and enjoy the music and tell me feel!
Thanks!
Hi,
Lots of people on this forum are building the DACEnd or the DACEnd 2 by Andrea Ciuffoli.
I read a lot about parts, upgrades and so on. But it is hard to find any results, reviews or comparisons of these DAC's on this forum.
My question is, are there already people on this forum who are using one of these DAC's in their Audio System, with good, bad or exellent results?
Lots of people on this forum are building the DACEnd or the DACEnd 2 by Andrea Ciuffoli.
I read a lot about parts, upgrades and so on. But it is hard to find any results, reviews or comparisons of these DAC's on this forum.
My question is, are there already people on this forum who are using one of these DAC's in their Audio System, with good, bad or exellent results?
Hi dirkveenstra!
you can see some link please:
http://www.diyaudio.com/forums/quanghao ... li-87.html
Post 862
http://www.diyaudio.com/forums/quanghao ... li-94.html
apelizzo post 934
http://www.diyaudio.com/forums/quanghao ... i-125.html
Post 1250 agithegreat
http://www.diyaudio.com/forums/quanghao ... i-140.html
Post 1394 -flocchini
http://www.diyaudio.com/forums/quanghao ... i-152.html
Post 1520 - ksnider1
http://www.diyaudio.com/forums/quanghao ... i-154.html
post 1539-Yunick
Thanks!
you can see some link please:
http://www.diyaudio.com/forums/quanghao ... li-87.html
Post 862
http://www.diyaudio.com/forums/quanghao ... li-94.html
apelizzo post 934
http://www.diyaudio.com/forums/quanghao ... i-125.html
Post 1250 agithegreat
http://www.diyaudio.com/forums/quanghao ... i-140.html
Post 1394 -flocchini
http://www.diyaudio.com/forums/quanghao ... i-152.html
Post 1520 - ksnider1
http://www.diyaudio.com/forums/quanghao ... i-154.html
post 1539-Yunick
Thanks!
Hi,
Lots of people on this forum are building the DACEnd or the DACEnd 2 by Andrea Ciuffoli.
I read a lot about parts, upgrades and so on. But it is hard to find any results, reviews or comparisons of these DAC's on this forum.
My question is, are there already people on this forum who are using one of these DAC's in their Audio System, with good, bad or exellent results?
I'm just waiting for Bud P to get back to me with transformers and I'll get this up and running in no time🙂
All things being equal this DAC should sound fantastic the way it's implemented🙂
I'll let you know!
No!
R1 set current for SSHV Supply =22 Ohm, Ia ( I total ~95-100 mA)
So Iv need total= 80mA, 1/2 Triode 6h30 need 18-20mA.( the sound is the most )
And Voltage at Anode =90-100V,
So voltage at R 22, 21,37,38 =3.8-4V , and R =200-220 Ohm, it is ok!
Thanks
You see it???
Ok I got the correct anode voltage 90V now. So the current through each triode is 2x20mA ~40-50mA, power on 6 anode resistors //18K total=3k, is IxIxR abt 7.5W and per anode resitor 7.5/6 ~1.25W less than the 2W rating, but resistors are quite hot, is this ok ? Also the 22R 2W dropper resistors R15/R31 are also quite hot.
You use 20ma for 1/2 tube, that is fine for the sound!
3k x 0.04 x 0.04 = 4.8W, so 6 x 2w = 12W, that is ok, no problem!
if you do not feel you can add a resistor 18k again, and down + B to 195V
And always keep 40ma for one tube and Anode 90V.
Can you tell me the sound it?? thanks!
3k x 0.04 x 0.04 = 4.8W, so 6 x 2w = 12W, that is ok, no problem!
if you do not feel you can add a resistor 18k again, and down + B to 195V
And always keep 40ma for one tube and Anode 90V.
Can you tell me the sound it?? thanks!
This image, you can see IV stage
Attachments
Last edited:
Hi dirkveenstra!
you can see some link please:
http://www.diyaudio.com/forums/quanghao ... li-87.html
Post 862
http://www.diyaudio.com/forums/quanghao ... li-94.html
apelizzo post 934
http://www.diyaudio.com/forums/quanghao ... i-125.html
Post 1250 agithegreat
http://www.diyaudio.com/forums/quanghao ... i-140.html
Post 1394 -flocchini
http://www.diyaudio.com/forums/quanghao ... i-152.html
Post 1520 - ksnider1
http://www.diyaudio.com/forums/quanghao ... i-154.html
post 1539-Yunick
Thanks!
Thank you very much for your info, I will read these posts.
I'm just waiting for Bud P to get back to me with transformers and I'll get this up and running in no time🙂
All things being equal this DAC should sound fantastic the way it's implemented🙂
I'll let you know!
Nice, I'm very interested in your opinion.
I'm just started with this project, it can take some time, because work is also important.
I'm building the DACEnd (not the DACEnd2)
You will hear from me when my DAC is running.
Do you use the 'Andrea Ciuffoli' PSU layout in your system?
Nice, I'm very interested in your opinion.
I'm just started with this project, it can take some time, because work is also important.
I'm building the DACEnd (not the DACEnd2)
You will hear from me when my DAC is running.
Do you use the 'Andrea Ciuffoli' PSU layout in your system?
Not DAC-ASH is like DAC-END 2, because I use all Salas shunt for this project!
Yes!
you can see some layout by me, with design by Andrea and Salas in my web:
Quanghao.com
Capacitors?
Hello,
For the IV board what caps are some of you guys using for C4, C5 (220uf/450v) and C16, C22 (47uf/450v)?
Thanks, Ben
Hello,
For the IV board what caps are some of you guys using for C4, C5 (220uf/450v) and C16, C22 (47uf/450v)?
Thanks, Ben
Hello,
For the IV board what caps are some of you guys using for C4, C5 (220uf/450v) and C16, C22 (47uf/450v)?
Thanks, Ben
Hi ben-jam-in!
Yes! C4. C5 220uF/450v!
C16, C22 47uf 250-450V Or no need it!
Quanghao
Hi dirkveenstra!
you can see some link please:
http://www.diyaudio.com/forums/quan...60-old-thread-dac-end-andrea-ciuffoli-94.html
apelizzo post 934
http://www.diyaudio.com/forums/quan...0-old-thread-dac-end-andrea-ciuffoli-125.html
Post 1250 agithegreat
http://www.diyaudio.com/forums/quan...0-old-thread-dac-end-andrea-ciuffoli-140.html
Post 1394 -flocchini
http://www.diyaudio.com/forums/quan...0-old-thread-dac-end-andrea-ciuffoli-152.html
Post 1520 - ksnider1
http://www.diyaudio.com/forums/quan...0-old-thread-dac-end-andrea-ciuffoli-154.html
post 1539-Yunick
Thanks
you can see some link please:
http://www.diyaudio.com/forums/quan...60-old-thread-dac-end-andrea-ciuffoli-94.html
apelizzo post 934
http://www.diyaudio.com/forums/quan...0-old-thread-dac-end-andrea-ciuffoli-125.html
Post 1250 agithegreat
http://www.diyaudio.com/forums/quan...0-old-thread-dac-end-andrea-ciuffoli-140.html
Post 1394 -flocchini
http://www.diyaudio.com/forums/quan...0-old-thread-dac-end-andrea-ciuffoli-152.html
Post 1520 - ksnider1
http://www.diyaudio.com/forums/quan...0-old-thread-dac-end-andrea-ciuffoli-154.html
post 1539-Yunick
Thanks
Last edited:
My friend like dac ASH
mengkut comments:
"Specific Hao said," check all of the CS8414 leg yesterday read the datasheet of the SC8414 not understand why it boiling like FM. I suddenly flashed on the son ic ic is glued, not welded his so familiar ...? How is this the end hooks attach all of the very first leg has finished plug. The feeling of specific know how when you then hear the melodious music scholarships emit no bass? then than 11g, Bear wakes up her sleeping Scholarship grumbled they are considered ideal world cup! so you hear a line more than one CD at 3 am. As of late or hear more! ơi sweet sound is sweet! bass filled with deep powerful compact, high bar separate treble English, and the singing of capenter alas, how that so sweet and gentle! ball really worth!
The instruments are registered on the board go fast hands, happiness is waiting at the front! "
mengkut comments:
"Specific Hao said," check all of the CS8414 leg yesterday read the datasheet of the SC8414 not understand why it boiling like FM. I suddenly flashed on the son ic ic is glued, not welded his so familiar ...? How is this the end hooks attach all of the very first leg has finished plug. The feeling of specific know how when you then hear the melodious music scholarships emit no bass? then than 11g, Bear wakes up her sleeping Scholarship grumbled they are considered ideal world cup! so you hear a line more than one CD at 3 am. As of late or hear more! ơi sweet sound is sweet! bass filled with deep powerful compact, high bar separate treble English, and the singing of capenter alas, how that so sweet and gentle! ball really worth!
The instruments are registered on the board go fast hands, happiness is waiting at the front! "
I'm currently using Rubycon MXC at C4,C5 and Jensen 47+47uf at C16,C22.Hello,
For the IV board what caps are some of you guys using for C4, C5 (220uf/450v) and C16, C22 (47uf/450v)?
Thanks, Ben
There's the BlackGate WKZ 220+220uf out there but the price is already sky rocketed. The Rubycons are doing a really fine job now in my IVY.
DAC-END Kit
Hi quanghao
Checking your website, I see the Kit DAC-END is out of stock. Will the kit be available soon and what does it include? Would I have to buy anything else to complete the DAC-END?
Thanks
Hi quanghao
Checking your website, I see the Kit DAC-END is out of stock. Will the kit be available soon and what does it include? Would I have to buy anything else to complete the DAC-END?
Thanks
Hi quanghao
Checking your website, I see the Kit DAC-END is out of stock. Will the kit be available soon and what does it include? Would I have to buy anything else to complete the DAC-END?
Thanks
Yes! Now I'm making about it! when it finis i reply you!
Thanks!
Hi All!
you can download schematic DAC and IV stage, Phono D3a, ...and the bom of them in this link:
http://quanghao.com/product.php?id_product=39
you can download schematic DAC and IV stage, Phono D3a, ...and the bom of them in this link:
http://quanghao.com/product.php?id_product=39
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