SIDizer 1.4 HyperSynth    

SIDizer is a state-of-art emulation of legendary SID chip in a form of a modern software synthesizer. ... all unique features of two versions (6581-8580) of SID chip among their famous flaws are accurately modeled. This emulation focuses on simulating nonlinear character of SID filter and mimicking special 6581 distortion that mainly .... Free download of SIDizer 1.4

sid chip web results