The best sounding audio integrated opamps - Page 5

jan.didden · 30th October 2009, 06:30 PM

Quote:

Originally Posted by Andrea:

I think I provided adequate reasons to suggest that it's not necessarily so...

At most you may say that all of my preferences are directly related to my particular music tastes. Then again, audio is subjective in nature, so what did you expect

No problem at all, I just wanted to highlight that this is YOUR personal preference, in YOUR application circuit, with YOUR music, in YOUR system, for reasons YOU only know.

A newcomer here could by mistake take these personal opinions as somehow having any value for other people with other music, other systems, other topologies.

jd

Andrea: · 30th October 2009, 07:54 PM

I do think that all my experience and my neverending tests could be of some use for others.

Andrea: · 30th October 2009, 08:02 PM

But as I myself wouldn't take anything read on a forum as gospel, so I would expect others to do with me

jan.didden · 30th October 2009, 08:12 PM

Quote:

Originally Posted by Andrea:

But as I myself wouldn't take anything read on a forum as gospel, so I would expect others to do with me

You are a gentleman!

jd

Robski666 · 30th October 2009, 11:08 PM

Quote:

Originally Posted by mlloyd1

jd:

that is a trick question, right?

.........

incredible ...

mlloyd1

Surely there all interchangeable! Nothing like a 1000V/us device with no ground plane and poor supply decoupling.

Andrea: · 31st October 2009, 07:53 AM

Quote:

Originally Posted by Robski666

As to the LT1028 I should have to try it and compare to OPA604 and LME49710 and such,... always fun.

As far as me, I've compared the LME49710 (NA and HA) and LT1028 extensively, and the LT1028 is what I'd take anyday. Be sure to try the ACN8 if you choose the DIP package.

Andrea: · 31st October 2009, 09:22 AM

I'm listening to the Jayhawks' Rainy Day Music, a very familiar record which I had forgotten for a while... yess, the LT1028 proves again its transparency. No special effects to be found here..

SoNic_real_one · 10:29 PM

Quote:

Originally Posted by ratza

SoNic_real_one, that NJMs is nowhere near OPA2134's performace. BTW, do you speak romanian by any chance?

It was just an example of applications where one OpAmp can be better than other (I/V versus preamplifier).
NJM2068 has 0.001% TDH at gain 20dB, 0.56uV noise, 6V/uS SR, 5.5MHz GBW.
OPA2134 has 0.000008% TDH at gain 1 (would be some 0.0008% at 20db), 1.2uV noise, 20V/uS SR, 8MHz GBW.
In a pure analog stage, 2068 is slightly better, but on an I/V stage 2134 is better. You are testing the OpAmps in preamplifier...

PS: Mai mult scriu in romana... De vorbit mai putin ca nu prea am cu cine.

Andrea: · 1st November 2009, 08:47 AM

Quote:

Originally Posted by SoNic_real_one

PS: Mai mult scriu in romana... De vorbit mai putin ca nu prea am cu cine.

J'ai tout compris

I'm thinking that I wouldn't mind trying the AD8599, although I already know from reliable sources that it's not as transparent as the LT1028.

Andrea: · 1st November 2009, 04:57 PM

I've replaced the LT1028 with the LT1363 and I seem to prefer the latter

It has a more mellow and warm sound. Love it. I'll make a quick comparison between LT1363 and LME49720HA to decide what to stay with, at least until I try the OPA1611 for which I have high expectations.

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30th October 2009, 07:54 PM	#42
Andrea: Banned Join Date: Oct 2009	I do think that all my experience and my neverending tests could be of some use for others.

30th October 2009, 08:02 PM	#43
Andrea: Banned Join Date: Oct 2009	But as I myself wouldn't take anything read on a forum as gospel, so I would expect others to do with me

31st October 2009, 09:22 AM	#47
Andrea: Banned Join Date: Oct 2009	I'm listening to the Jayhawks' Rainy Day Music, a very familiar record which I had forgotten for a while... yess, the LT1028 proves again its transparency. No special effects to be found here..

1st November 2009, 04:57 PM	#50
Andrea: Banned Join Date: Oct 2009	I've replaced the LT1028 with the LT1363 and I seem to prefer the latter It has a more mellow and warm sound. Love it. I'll make a quick comparison between LT1363 and LME49720HA to decide what to stay with, at least until I try the OPA1611 for which I have high expectations.