Good day. Lovely set up a beautiful Fosi equipment.
I noticed you haven't gotten a response here so let me try to help. I have found Gemini the AI on my Android phone to be super helpful to determining where a specific op-amp will do the best job. I have learned that the sx52b doesn't work well in an amplifier but better in a preamplifier. Stuff like that. So I would take whatever phone has AI for you and ask some questions about placement and the specific op amp.
There is also a great deal of data on YouTube videos about your specific product in different op amps that have been tested in it.
I have never used the op amps you have mentioned they're out of my price range but I've had great luck with opa 2134, opa 1656, muses O2. Muses 02 are going to be discontinued and you can still get them from Fosi Audio. That is where I bought mine so I could trust they were real there are a lot of fake ones on the market. If you find them for less than $24 they're probably fake. That would be my bet. But that's a great op-amp for the money much less than the Burson or sparkos
Good luck with your adventure.
