Closed MOS SID 6581 100% tested

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What is the difference from 6581R3 and 6581R4AR?
 
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kaini said:
What is the difference from 6581R3 and 6581R4AR?
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Minor changes to the silicon but nothing really worth considering/preferring one over the other revision!
However: Years ago there was a myth that R4(AR) sound "better" which I can say for sure is wrong.
Due to that myth R4AR were better and people often preferring that revision R4AR are now harder to get.
 
Got the SID today, fitted it right away. It sounds AWESOME.
Thanks so much. Mouse tested and working :)
And for the first time on my C128 They are taking the Hobbits to Eisenguard.
 
Interested in 4 6581r3 and 4 6581r4ar please can you send me pm with best price thank you
 
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