i'll ask our contact person there about this. i highly doubt i'll get any sort of answer about the technical details of the device, but its worth a shot...
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Murcia, Spain
So it seems that they perform the same, and the only difference is the lack of the games PCB in mine.
I'll add your thoughts to the first post.
I would have sweared I had heard a sound glitch at the beginning of Oracle of Ages, but I thought it was just me sleeping two hours last night xD So it could have happened...
Maybe they thought PU1 and PU2 were the same and didn't take into account the differences when they put it up.
I hope you get something from them, kitsch. Curiosity is killing me : D
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Sydney Australia
Hey, I did an Audio Test of my GB Boy and posted it on YouTube so you can hear it. Im fairly new to the whole Make Music On A Game Boy thing, and I don't own any other gameboys but this sounds pretty good to me.
Any hope it helps
If you have any personal questions about it, Or wanna see another video on it or something feel free to email me
http://SwebsMusic.com/contact