Hey leeperry, it looks like you're enjoying the head-fi mediocrity again! 🙂leeperry said:
The LT1028A is more transparent than the OPA827, more musical too. It takes rather little though 😉leeperry said:
Yet, the LT1028A is not a satisfying opamp; it's too hard and thin/mechanical sounding; in short, it still sounds like an opamp. Try the OPA1611 😉 Ouch. 😀
For me, all things considered, the best opamp choices are a few BB's (OPA1611, I expect OPA1641, and OPA132), a few LME's (the ones with the "HA" suffix, plus LME49723 and LME49725); and possibly, here and there, a few LT's (LT1028, LT1363, LT1357, LT1468). All the rest is forgotten.
Including majkel's favorite OPA228, which isn't that great sounding an opamp to me (especially, not that different from the OPA227). 😕
Including majkel's favorite OPA228, which isn't that great sounding an opamp to me (especially, not that different from the OPA227). 😕
If you google "single to differential output amplifier" etc you will find a lot of applications and data etc You an always do it the old fashioned way using normal opamps or even discrete.
Alright...as predicted. Thanks! It may be a very good choice when a FET opamp is required, though.
Would be very interesting to compare OPA1641 and OPA132. My samples have been sent (just received related email) so I may manage, someway, somehow...
LT1028A(on sockets 😀) cannot beaten as final buffer on my card...all this OPA junk can't test
c'mon OPA1611 was sooooooo colored, very strange sound...clearly not what I'm looking for.
well, w/o majkel I would have never tried AD797B...so I'm in debt w/ him on that point, and it's nice to share infos on head-fi...hopefully there'll be more ppl chiming in in that thread than OPA827/LME49720HA fanboys 😛
C'mon... the OPA1611 is not a colored opamp... others are colored, including the OPA827 (since it sounds somewhat sterile), OPA132 (though pleasantly this one)... The OPA1611 is rigorous yet musical. 😉
Even my CMOY + Sennheiser HD238 has told me so. 😉
I guess you're too addicted to something else to judge fairly. 🙂
Even my CMOY + Sennheiser HD238 has told me so. 😉
I guess you're too addicted to something else to judge fairly. 🙂
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Anyhow, please have a look:
AK4396 + AD797 + LT1028 = 12346789 = 8 different numbers (out of 9), with no repetition except that of number 7
AK4396 + AD797 + OPA1611 = 134679 = only 6 different numbers, with 1 and 6 repeated more than I'd like to see 🙂
You still think it's the OPA1611's fault that you don't like it? 😉
At least on the color side of things, which I'm not sure if you can hear (and relate to numbers) as I do 🙂
AK4396 + AD797 + LT1028 = 12346789 = 8 different numbers (out of 9), with no repetition except that of number 7
AK4396 + AD797 + OPA1611 = 134679 = only 6 different numbers, with 1 and 6 repeated more than I'd like to see 🙂
You still think it's the OPA1611's fault that you don't like it? 😉
At least on the color side of things, which I'm not sure if you can hear (and relate to numbers) as I do 🙂
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For once, I agree with him (although I know for sure that his sound perception is limited 🙂).diditmyself said:
Come on! The LT1028 can't be considered an uncolored opamp! It has a definite personality, like it or not. I liked it, but I found I couldn't live with it (didn't enjoy my music in a completely immersive way).
I don't exclude, though, that it would be great in some equipment that doesn't have just one opamp stage... for instance, should I buy the HA INFO NG94 eventually, I already know that the two LT1028ACN8 Browndog's I have will be put at work 🙂
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hehe, Andrea...the whole op-amp/DAC numerology is very smokey...and you know that 😉
yeah I can't relate colors to sounds, I'd say LT1677 sounded very limited and bright...but what it did it did it really well!
but it felt like the 4562...it's easy to make the upper spectrum shine and dig until the end of days for small details there, but who can sustain this for long periods???
OPA1611 sounded very strange to me, very lofi...LT1028A sounded far more HD and capable of doing much more amazing things than a cheapo "one note" op-amp(if you'd allow to very slightly exagerate).
LT1028A and AD797B are able to take you by surprise because they are so versatile...I can say this about very few chips, I would even add that they are even more versative than the Burson's...that sound like dinosaurs in comparison.
yeah I can't relate colors to sounds, I'd say LT1677 sounded very limited and bright...but what it did it did it really well!
but it felt like the 4562...it's easy to make the upper spectrum shine and dig until the end of days for small details there, but who can sustain this for long periods???
OPA1611 sounded very strange to me, very lofi...LT1028A sounded far more HD and capable of doing much more amazing things than a cheapo "one note" op-amp(if you'd allow to very slightly exagerate).
LT1028A and AD797B are able to take you by surprise because they are so versatile...I can say this about very few chips, I would even add that they are even more versative than the Burson's...that sound like dinosaurs in comparison.
I don't "know" all that you think, fortunately. 🙂
The LM4562 has its limitations, it's not that it goes too far in retrieving detail (which it doesn't, as others, including the OPA1611, do it better).
Your low fi is my hi fi. 😱
They sound pretty transparent superficially, but if you take a closer look, they always impose a certain character on sound, like anything else, and perhaps more than average.
The OPA1611 is the opposite: it may display a touch of character superficially, but when you get used to it you realize how musically unobtrusive and subtle it is... And something similar goes for the LME49720HA too.
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Hello Andrea, I see you have many valid opinions on many subjects. I know it's off topic and not opamps but would you like to post your opinion on my recent thread regarding burn/run in times for new equipment?
I'd be interested in reading your thoughts.
I'd be interested in reading your thoughts.
hehehe, easy Andrea it's all just a game 😛
BTW, a K701/HD800/CD3k comparison: Head-Fi: Covering Headphones, Earphones and Portable Audio - View Single Post - Sennheiser HD800 Appreciation Thread
BTW, a K701/HD800/CD3k comparison: Head-Fi: Covering Headphones, Earphones and Portable Audio - View Single Post - Sennheiser HD800 Appreciation Thread
Perhaps power circuits that support amplifiers may cause differences much more vast than the amplifier topologies themselves?
Considering the Pioneer amplifier, I think that perhaps Andrea may be performing pre-whitening to a mild extent. If that's the case, its a good skill to master for the purpose of getting pre-amps and power amps to work together.