SID Fixer is a new hardware expansion for the Commodore 64 or 128. This makes it possible to switch between a 6581 (old SID) and a 8580 (new SID). Features are: Selectable SID, Protection of the in- and outputs of the SID. Noise reduction. Stereo music possible with a small alteration of the motherboard. The estimated price is 79.90 Euro. More details on ordering will follow.