Re: ... can kill difference ...
I almost agree with you,usually cable difference is result of weak output circuit. But fact is fact,not a lot of people have enough knowledge&expirience to change or improve it,so they play with cables,which is also some kind of "correction".
Upupa Epops said:
I almost agree with you,usually cable difference is result of weak output circuit. But fact is fact,not a lot of people have enough knowledge&expirience to change or improve it,so they play with cables,which is also some kind of "correction".
... warmer and less focused ...
= higher distortion. Do you like it ? 😉 BTW, I agree with you in comparision between integrated and discretete version of diamond buffer 😉 .
= higher distortion. Do you like it ? 😉 BTW, I agree with you in comparision between integrated and discretete version of diamond buffer 😉 .
For many people is " lower distortion = boredom ", they lose " sauce " and " flavouring ". 😉 They don't know, that beefsteak is the best without spice 😉 .
Upupa Epops said:
I think lower distortion in one area can expose weaknesses in another...e.g. in the recording. It's not necessarily that people like distortion per se, to suggest that would be a little presumptuous 😎
Re: ... warmer and less focused ...
Euphonic distortion, so they say...
It was actually hiding quite well the problems associated with a cheap mp3/soundcard playing 192kbps mp3's.Upupa Epops said:
Euphonic distortion, so they say...
Upupa Epops said:
That is the most difficult question in all hi-end business! What is a good sound? .Different people have different tastes and different psyco-acoustical models. Some people like "clean" sound,some "warm". I personally like "precise" and a bit "warm" sound.Here is no solution for all of us.That is way so many brands in business🙂.BTW 90 procents of people really doesn' care a sh..t about sound🙂,and they have right too🙂.Difficult question.
Sit on front of man playing guitar and listen. Or guys playing bongas, or string quartet etc. Listen all, wood, strings, rustle of cloth, breathing ... Do you hear some distortion ? Do you need some distortion ? 😎
From your experience...
Ever curious to hear about the experiences of others; What have you found to be 'the best' [to your ears], and how would you compare the 627+634 to that?
Cheers,
LarryO
AnthonyAsh said:
Ever curious to hear about the experiences of others; What have you found to be 'the best' [to your ears], and how would you compare the 627+634 to that?
Cheers,
LarryO
Just one notice : Most of people compare only one sound equipment against another one. As "sound source " they use in absolutely most of cases some CD player. But if you take any CD recording and compare it with " live sound ", you will hear, that CD is very very far from " natural " at high frequencies. So what we are searching by comparision of opamps ? Grade of elegancy ? Or what ?
Re: From your experience...
I really doesn't listen a lot of headphone amps. Many of them,especially build-in in devices is just sh..ty.From standalone I like for example Musical Fidelity valve headphone amp.Also I heard some model (forget it)based on TPA6120,that was pretty good,fast and detailed sound. I never heard opa627+634,my friend does,and he very like it.I may will build it some time,it is very easy task.
lgo51 said:
I really doesn't listen a lot of headphone amps. Many of them,especially build-in in devices is just sh..ty.From standalone I like for example Musical Fidelity valve headphone amp.Also I heard some model (forget it)based on TPA6120,that was pretty good,fast and detailed sound. I never heard opa627+634,my friend does,and he very like it.I may will build it some time,it is very easy task.
AnthonyAsh said:
That's right, differences between cables become very very small and hard to detect (if mostly undetectable).
You don't really need the BUF634 to achieve that. It helps if you need to drive long cables, though.
What you need basically is low output impedance.
Any good op-amp with an output series resistor of 50R or less will achieve a similar result of much better driving ability and makes comparing expensive and cheap cables a loss of time.
Just figure out what you can achieve by choosing the right component values.
I get sick when I see 1k+ output series resistors on CDPs.
carlosfm said:
I get sick when I see 1k+ output series resistors on CDPs.
Yes🙂.May be such engineers(which use 1k at out) sponsored by cable makers🙂
AnthonyAsh said:
Technically, as they short the outputs to ground with muting transistors (which kill the sound), to protect the op-amps' output from a direct short they use high value resistors.
But even a small 22~50R resistor can't kill an op-amp.
It is all very bad...
And yes, they do like to sell cables.😎
carlosfm said:
I know what you talking about.🙂Denons 685,785,1450 suffering a lot from muting transistors.I upgrade some,just replacement of opa's is not sufficient.PSU must be upgraded and muting transistors removed.Than it start to be much better.Also filter chip in such Denons is sh..t,but that is other story🙂
Upupa Epops said:
Yes, ultimately CD is flawed in the high treble, and SACD even more.
That's why I always kept my precious vinyl (and I do listen to it).
I have also a couple of DVD-A recordings that sound gorgeous, such a natural, "non-scratchy", detailed, extended treble is a joy to listen to.
But the most orgasmatic experience is to listen to a live, unamplified performance.
Then some of you who like it "smooth" will understand why you are so far from reality.😎
I don't discuss tastes, though.🙄
But I like accuracy.
carlosfm said:
Yes, ultimately CD is flawed in the high treble, and SACD even more.
I don't discuss tastes, though.🙄
But I like accuracy.
I don't like SACD,because of very high noise level for frequencies over 50Khz.May be in future SONY will inproduce sacd chips without this problem,but right now it can be problem for amplifiers.DVD-A free of this problem,but marketing is so-so.
Totally different experience
What? CD and especially SACD have the best highs I ever heard! That ol' fashioneded schrathing needle barely makes it to 20kHz.......
Of course you need a decent clock to enjoy that. I know which one.....Did you ever hear a Sony SCD-1 with OPA627BPs as IV converters???
🙄 🙄 🙄
carlosfm said:
Yes, ultimately CD is flawed in the high treble, and SACD even more.
That's why I always kept my precious vinyl (and I do listen to it).
I have also a couple of DVD-A recordings that sound gorgeous, such a natural, "non-scratchy", detailed, extended treble is a joy to listen to.
But the most orgasmatic experience is to listen to a live, unamplified performance.
Then some of you who like it "smooth" will understand why you are so far from reality.😎
I don't discuss tastes, though.🙄
But I like accuracy.
What? CD and especially SACD have the best highs I ever heard! That ol' fashioneded schrathing needle barely makes it to 20kHz.......
Of course you need a decent clock to enjoy that. I know which one.....Did you ever hear a Sony SCD-1 with OPA627BPs as IV converters???
🙄 🙄 🙄SACD : If you have amp with high SR, noise probably will be not problem 😉 . I agree with Elso, SCD-1 ( or 777 ) are excelent machines, BTW both with discrete diamond buffer at output 😉.
Re: Totally different experience
Elso, have you heard a good stereo 24bit/192khz DVD-A recording?
Yes, CD and SACD can sound good, but the real thing, what really sounds like real instruments is good DVD-A.
I'm just distinguyshing the "very good" from the real thing, that's all.
SACD is better than CD up to around 5khz.
Then distortion starts climbing.
Most recordings are not better than a good CD, with very few exceptions.
The best SACD disc I have is from Linn, with jazz and classical music.
The rest of what I have on SACD doesn't impress me, some are even bad sounding recordings, and for that we have some CDs already.
I know that, and I have that.
I install clocks on my CDPs since 1999...
Try it on a DVD-A player, and listen to a good recording.😉
Jesus, Elso!
You sound like Lars.😱
No, just "old-fashioned" TDA1541A and TDA1543 dacs with OPA627BP as IV.😀
Did you salvage that horrible (as standard) sounding player?
PS: bitstream doesn't sound real to me.
Elso Kwak said:
Elso, have you heard a good stereo 24bit/192khz DVD-A recording?
Yes, CD and SACD can sound good, but the real thing, what really sounds like real instruments is good DVD-A.
I'm just distinguyshing the "very good" from the real thing, that's all.
SACD is better than CD up to around 5khz.
Then distortion starts climbing.
Most recordings are not better than a good CD, with very few exceptions.
The best SACD disc I have is from Linn, with jazz and classical music.
The rest of what I have on SACD doesn't impress me, some are even bad sounding recordings, and for that we have some CDs already.
Elso Kwak said:
I know that, and I have that.
I install clocks on my CDPs since 1999...
Try it on a DVD-A player, and listen to a good recording.😉
Elso Kwak said:
Jesus, Elso!
You sound like Lars.😱
Elso Kwak said:
No, just "old-fashioned" TDA1541A and TDA1543 dacs with OPA627BP as IV.😀
Did you salvage that horrible (as standard) sounding player?
PS: bitstream doesn't sound real to me.
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