I heard there is some mod that improves the sound on Twin Famicom?
At one point I removed a capacitor on the power board. But this made it sound weird so I don't do it anymore. But there is some other way, right? Can you link it?
Probably referring to this?
http://nerdlypleasures.blogspot.com/2018/01/famicom-nes-simple-tweaks-to-restore.html
Thank you, that could be it.
Though I disagree with "disable the overdone low-pass filter, you must remove the .022uF at C205". the sound is louder but also sounds worse, in my opinion. There is a reason they put that filter there.
As for " some of the older Twin Famicoms which have a pair of resistors switched.", I could mention this only seems to be the case for red twin famicoms. I estimate at least 50% of red consoles have this problem. Out of the 10 or so I have had, more than half had the problem. But it doesn't happen on other models.
"Finally, I would suggest a few resistor replacements to get the internal balance closer to the original Famicom and Famicom Disk System. Replace the 22K at R125 with a 20K and the 2.2M at R103 with a 2M." I will try this and report back.