Subatomic's MIDIbox SID is "a DIY a synthesizer with sound chips from the original commodore 64 personal computer from the 1980's. The synth is built into an original Commodore 64 computer case. And features 8 SID chips (4 stereo pairs). Each SID chip has 3 oscillators and a variety of other features like filters, ADSR, ringmod, sync. The synth has a very flexible (and simple to use) modulation matrix, LFO, bassline sequencers, and stores patches in presets."