]]>]]>I'd add a buffer amp still. Look into integrated amp ICs, these come in DIP8 packages and typically require only a few additional components. They typically include the required schematics inside the datasheet as well. As an example, look at TDA2822M (example usage).
When you've got the NES open, I'd also suggest replacing the 1A 7805 regulator with a 3A one if you're gonna do some additional mods (I added LEDs, couldn't resist...). Or better yet, some modern regulator that doesn't produce as much waste heat, but that'd also require some reading into the schematics.
Oh, and I personally disable the CIC chip for stability reasons
Thanks for that really appreciated I was thinking about a buffer amp. I am looking to any approvement I can make with the sound. Do you know if smoothing the ripple with a shunt regulator in the power supply would also help the sound?.
]]>When you've got the NES open, I'd also suggest replacing the 1A 7805 regulator with a 3A one if you're gonna do some additional mods (I added LEDs, couldn't resist...). Or better yet, some modern regulator that doesn't produce as much waste heat, but that'd also require some reading into the schematics.
Oh, and I personally disable the CIC chip for stability reasons
]]>Also, fwiw, this is the guide I more or less followed to do my mod. I didn't bother with amplification cause it's a good enough signal for my uses but it is really quite simple to do and m soldering skills are next to trash so if I can do it...
]]>kvee wrote:I know your goal is probably using the authentic hardware, but remember, we do live in the age of cycle-accurate emulators
Just a semi retired geek with free time do do it the hard way.
Hey, if you ever DO decap the chip, let me know 
kvee wrote:You could do a stereo mod + custom amp by just using the two analog signals directly from the output pins. I've done that personally, the noise floor was about -60 dB.
Thanks I already considering this as the best option.
All right 
It's definitely a worthwhile mod, I had tons of fun even with just these two fixed channels...
I know your goal is probably using the authentic hardware, but remember, we do live in the age of cycle-accurate emulators
Just a semi retired geek with free time do do it the hard way.
You could do a stereo mod + custom amp by just using the two analog signals directly from the output pins. I've done that personally, the noise floor was about -60 dB.
Thanks I already considering this as the best option.
]]>]]>Is there anyway to get the digital audio signal out of the APU before it is converted into analog? Or is it done internally in the chip with no access to the routing. Be nice to have the option to use a 3rd party DAC.
Thanks
I don't know with absolute certainty but I've researched every mod for the NES I could find and never came across this option. If it was possible, someone certainly would have done it by now, so I'm assuming analog RCA out is the best that can be done with the stereo separation pro-sound mod.
Although, there is this:
https://wiki.nesdev.com/w/index.php/APU_Mixer
Not a language I speak but looks like it might be possible?
]]>Thanks
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