The Xonar Essence STX Q/A, tweaking, impressions thread
Jul 23, 2020 at 5:32 AM Post #5,687 of 5,694

Globali

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Jul 29, 2020 at 4:06 AM Post #5,688 of 5,694

Moses4188

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@Moses4188, I would try OPA1612 in I/V and LPF, but also LME49720/LM4562 in I/V and LPF as well. Based on http://nihtila.com/2017/01/08/pcm1794a-output-stage-opamp-measurements-lm4562-ne5532-and-opa2134/:
"The best solution is to use NE5532 in I/V-stage and LM4562 in differential amplifier as it gives almost identical performance to all-LM4562 implementation".

If DAC implementation is a very good one and the PCB layout is very good too, then with cheap opamps we can achieve lowest THD+N and a neutral sound.

What about OPA1656 or NE5532?
 
Jan 8, 2021 at 7:17 PM Post #5,690 of 5,694

L36i

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Thought I'd share my experience. I recently swapped out my LM49720NA for V6 Classic on my Xonar STX. I have HD650s with stock cable. All I have to say is WOW. These op amps are no snake oil. The best out there. Worth every dollar. This sounds cliche as heck but with the V6 there are sounds in songs I've never perceived before.
 
May 18, 2021 at 7:23 AM Post #5,693 of 5,694

Rantanplan

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Yup, and its about to have one more.

Thanks to this thread, i started swapping my op-amps a few months ago.

I do not recommend the V5i, at least with the pair i had. Now and then it would have a grainy fuzzy sound when no music was playing, which is less apparent when using higher impedance headphones. I've also seen this mentioned by someone else before.

I just ran into the same issue, especially when they were used in the I/V stage, that's a shame for their price.
 

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