The breadbox C64 and the C128 has the 6581 SID chips.
The C64 c and the C128D computeres has the newer SID revision chips.
For the most part, if you dont listen to alot of SID musics, then you probably cant tell the difference. :-)
I can tell the difference in musics when its played on the old SID versus the newer SID. :-D Heck, im only 20yrs old, but C64 was the machine I grew up on. :-)
