Good Opamp that replace JRC4580? Anyone?

[Filburt]

Bypassing means you're practicing sensible technique for the use of op-amps, including of course high-speed op-amps. I wish people would stop acting like it's some sort of terribly difficult thing to deal with and discouraging people new to the hobby from pursuing higher performance solutions because of these simple additional steps. It holds people back and I think greatly contributes to the eventual view that commercial solutions are somehow more refined or 'tuned' versus what is available in the DIY sphere.

 

[DSlayerZX]

Alright, I just pulled the trigger, I bought 3 LM4562 and two AD8397, hope I will like them. Also, it is time for me get some capacitors from the lab hehehe

 

[Seaside]

edited ;p
.

 

[Seaside]

And glad DSlayerZX made his decision. I think he made good choice.

 

[Filburt]

I'm not judging you in particular. I've just noticed a trend of people giving strong warnings against dealing with bypassing and higher speed op-amps when they really aren't that scary if you just apply a basic level of care in installation. I don't think it's bad to suggest to people to be careful, but I also don't think it's necessary to make it sound like it's not worth trying. The AD8397 is a great general purpose op-amp for many applications and, in my experience and opinion, worth taking the time and effort to use. If you have a high impedance on the input, it can be worth looking at a FET input op-amp due to lower current noise, though...although it's not always the case that there will be enough noise to make SNR a problem; size of the signal will come into play.

 

[MisterX]

Quote:

Think so?

Don't think so.
I know so.

 

[DSlayerZX]

wait... now I am confused..... did you actually used the 8397 and ended up ruining the sound card? if not, then how can you tell

 

[tola555]

Hello,

I just soldered 2x LM4562MA chips to ESI Juli@ but I'm not happy

There's less detail, no kick, soundstage is not as good as it was. It's veiled and no detail. And balance does not work any more

If I play track with only left or only right channel then it's not mono.

If I did all work OK, then I need more dynamic op amp.

from: http://www.diyaudio.com/forums/showt...hreadid=137160

"LM4562 does not work very well at 5V. I know, I tried. Replacing a 4558 with a 4562 in a SB Live! card I had required me to hack up the power line (cut trace) and rework it to supply 12V to the chip, with a RC filter so it finally was around 10V). "