Re: Just a quick one...
Konnichiwa,
It is more transparent and detailed, but cannot drive cables or loads too well (the original Adagio was designed for a "DAC Shootout" where the volume control was a low impedance version of the Audio Synthesis Passion - worst case load around 2K).
Sayonara
Konnichiwa,
Andypairo said:
It is more transparent and detailed, but cannot drive cables or loads too well (the original Adagio was designed for a "DAC Shootout" where the volume control was a low impedance version of the Audio Synthesis Passion - worst case load around 2K).
Sayonara
Hi Sayonara,
I'm new in this forum, just read this post about your tube I/V stage for 1541. I'm interested in it, and I got some questions and hope you can help to answer..
Q1) You mentioned that IXYS HV Chip CCS, is it this one? High voltage current regulator. http://www.ixys.com/98703.pdf
Q2) If yes, what is the frequency response of this regulator? as it doesn't state in the datasheet.
Q3) Did you compare the performance between choke-loaded and CCS? which one is better?
Thanks!
I'm new in this forum, just read this post about your tube I/V stage for 1541. I'm interested in it, and I got some questions and hope you can help to answer..
Q1) You mentioned that IXYS HV Chip CCS, is it this one? High voltage current regulator. http://www.ixys.com/98703.pdf
Q2) If yes, what is the frequency response of this regulator? as it doesn't state in the datasheet.
Q3) Did you compare the performance between choke-loaded and CCS? which one is better?
Thanks!
Konnichiwa,
One like that.
Gary Pimm has a plut of this one on-line, looks pretty decent. Also, Pete Millet tested this one quite extensively, goole it.
Not specifically the IXYS one, but with other CCS circuits. I like chokes better but it is a question 50 Cent vs. 100 Bucks for CCS vs. Choke. If cost is no object, Tango TC-160-15 or the Stevens & Billington Anode Load choke I had designed for my own use or a suitable Magnequest article are the better choice.
Sayonara
nothing said:
One like that.
nothing said:Q2) If yes, what is the frequency response of this regulator? as it doesn't state in the datasheet.
Gary Pimm has a plut of this one on-line, looks pretty decent. Also, Pete Millet tested this one quite extensively, goole it.
nothing said:
Not specifically the IXYS one, but with other CCS circuits. I like chokes better but it is a question 50 Cent vs. 100 Bucks for CCS vs. Choke. If cost is no object, Tango TC-160-15 or the Stevens & Billington Anode Load choke I had designed for my own use or a suitable Magnequest article are the better choice.
Sayonara
HI,SAYONARA
I believe I know you from a Hongkong's audiophile magzine,which express your article for modify Phliips CD850.
.....I don't konw you can read Chinese or not
http://www.hifidiy.net/dispbbs.asp?BoardID=2&id=9788&replyID=9788&star=4&skin=0
to the post topic
I have tried your I/V circuit which compose of RC filter and LC papallel resonate... I can not get excellent sound(may be I make a fault),worse than my Zanden's type B.E.F fiter,but my friend get the excellent sound from apply the 7 pole LC filter which from old Janpanese Cd player.
I feel that the reason is its filter effect is not enough.How do you think?
http://www.hifidiy.net/dispbbs.asp?BoardID=2&id=4499&replyID=4499&star=9&skin=0
sayonara
X.G.
I believe I know you from a Hongkong's audiophile magzine,which express your article for modify Phliips CD850.
.....I don't konw you can read Chinese or not
http://www.hifidiy.net/dispbbs.asp?BoardID=2&id=9788&replyID=9788&star=4&skin=0
An externally hosted image should be here but it was not working when we last tested it.
to the post topic
I have tried your I/V circuit which compose of RC filter and LC papallel resonate... I can not get excellent sound(may be I make a fault),worse than my Zanden's type B.E.F fiter,but my friend get the excellent sound from apply the 7 pole LC filter which from old Janpanese Cd player.
I feel that the reason is its filter effect is not enough.How do you think?
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
http://www.hifidiy.net/dispbbs.asp?BoardID=2&id=4499&replyID=4499&star=9&skin=0
sayonara
X.G.
Konnichiwa,
Nah, unless I'm being quoted without me knowing....
Well, what sounds good in subjective, personal terms is a matter of taste. What I designed is for my own taste. And in the context of my own system and similar ones.
Non OS DAC's with minimal filtering can cause unfortunate interactions downstream (as can SACD Players BTW). Too many variables. If you can suggest the actual system context and so on....
But in the end, use what you like.
Sayonara
X.G. said:
Nah, unless I'm being quoted without me knowing....
X.G. said:
Well, what sounds good in subjective, personal terms is a matter of taste. What I designed is for my own taste. And in the context of my own system and similar ones.
Non OS DAC's with minimal filtering can cause unfortunate interactions downstream (as can SACD Players BTW). Too many variables. If you can suggest the actual system context and so on....
But in the end, use what you like.
Sayonara
oh....the first time I know your name K. Y. Wang is in this magazine(not know you ...sorry for my mistake and poor English) about 10 years ago,the second time I know is on this Diyaduio forum one and a half years ago ...
'K. Y. Wang' look like a Chinese name which used often by Hongkong people ...so,I even think you are a Chinese before
good luck,sayonara
X.G.
...sorry for my mistake and poor English) about 10 years ago,the second time I know is on this Diyaduio forum one and a half years ago ...'K. Y. Wang' look like a Chinese name which used often by Hongkong people ...so,I even think you are a Chinese before
good luck,sayonara
X.G.
RLC question
Hi Thorsten,
as always you have been very helpful.
But to pull your leg further I have another question.
The 47 nF specified for the capacitor that goes paralleled to the R+RLC network shows, at a quick simulation of the impedance, something wrong.
Did I miss to see the decimal point? With a 4,7 nF the impedance seems more reasonable for a anti-sinc filter...
PS the overall impedance of the network seems a tad high for the specified compliance of the TDA1541A. Did you find this value to be a good compromise between useful signal amplitude and linearity of the current sources?
Cheers
Andrea
Hi Thorsten,
as always you have been very helpful.
But to pull your leg further I have another question.
The 47 nF specified for the capacitor that goes paralleled to the R+RLC network shows, at a quick simulation of the impedance, something wrong.
Did I miss to see the decimal point? With a 4,7 nF the impedance seems more reasonable for a anti-sinc filter...
PS the overall impedance of the network seems a tad high for the specified compliance of the TDA1541A. Did you find this value to be a good compromise between useful signal amplitude and linearity of the current sources?
Cheers
Andrea
Attachments
Sings sweetly...
Hi all,
I completed my tube stage and it really sings.
The only difference from Thorsten's indications is the plate voltage, that is somewhat lower than the 70-75V expected.
Upping the current to 15mA/tube I get to 60-65V, not really a problem but worth mentioning.
Here is a pic of it (most of the components of the I/V stage are wired P2P on the underside of the board)
Cheers
Andrea
Hi all,
I completed my tube stage and it really sings.
The only difference from Thorsten's indications is the plate voltage, that is somewhat lower than the 70-75V expected.
Upping the current to 15mA/tube I get to 60-65V, not really a problem but worth mentioning.
Here is a pic of it (most of the components of the I/V stage are wired P2P on the underside of the board)
Cheers
Andrea
Attachments
- Status
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