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I didn't removed them, so let's wait for others that removed them to reply.
Maybe as an additional benefit, but the main purpose if I understand correctly is short-circuit protection, so if you remove them you basically have to never plug/unplug phones while the DAP is on or you'll short the circuit, even very briefly.
From OP275 datasheet:
So it should be safe to remove (short) 4 balanced output resistors, but output impedance will still be high (15Ohm).
I replaced LPF opamps for AD8620 and shorted output resistors, no issues so far. These have quite low output impedance and output short circuit protection too (even if it not an issue with balanced output as ground is not utilised at all).
How i change the oamp. If i buy a muses02 how do i put it on it and where?
there's a video from Mark Erman on it but it looks like requires soldering which I hope isn't the case
I've been changing the op amp in my Z3 as its pretty much pull plug and play. It has a burson 5vi dual in there now
If someone could verify its only "plug and play" without soldering on the Zishan DSD i would go for it and do it. Otherwise i dont have the gear and skills to do it.
Both my zishan dsd's had rollable opamps
Could you explain where i had to unplug and plug the components and which components do you prefer for the mod?
here's the DSD op amp rolling video I was talking about
So i need a knife to cut the oamp? its not that good explaint. What i should do with the oamp on the beginning. And its with soldering, so for me impossible to do it. not just plug and done.
All zishan dsd versions have a rollable opamp, they also have a opamp as gain, lpf and on some their is another opamp, so a total of 3-4 depending on the version you can change the gain or lpf easily, but the video above is changing the soldered in op275, same as the z3, it has a rollable opamp and 1 soldered in, so if you only roll the 1 opamp in your z3, and want the same from a dsd then you are good to go.
What version you have, ak4497 ?
Could you show me on the Zishan DSD which part is rollable and which part should i buy? Is there recomendation?
You need to tell us what DAC you have, because there are different HW versions, with different layout, depending on the DAC used.
Does it help?